1971 Pontiac Firebird Differentials

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Keep Your 1971 Pontiac Firebird in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1971 Pontiac Firebird looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Rear Differential Cover Gaskets, and Differential Bearings. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Motive Gear, Driveworks, and Felpro. For example, Motive Gear Differentials start at just $3.99 with an average 4.1 star rating. Driveworks and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 13,872 reviews and a solid 4.2 star average, you can shop with confidence knowing other Pontiac Firebird owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1971 Pontiac Firebird Differential at Advance Auto Parts is around $216.02, with a range that starts at $0.91 and goes up to $929.99. With 273 options in stock from 16 trusted brands, finding the right fit is easy. Popular picks like Driveworks Taper Bearing Set, S-A-6, Motive Gear Ring Gear Bolt, 14066913, and Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 start at just $2.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1971 Pontiac Firebird in peak condition, inside and out.

Essential 1971 Pontiac Firebird Differentials

National – National Shaft Repair Sleeve, 99170 (Part No.99170)

National Shaft Repair Sleeve, 99170

from

$47.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
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Yukon Gear – "Yukon Gear 7.5"" & 8.2"" GM Redi Sleeve Yoke Saver, 30221" (Part No.30221)

"Yukon Gear 7.5"" & 8.2"" GM Redi Sleeve Yoke Saver, 30221"

from

$136.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
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Yukon Gear – Yukon Gear Standard Open Side Gear and Thrust Washer for GM 12 Bolt Car and Truck, 33380 (Part No.33380)

Yukon Gear Standard Open Side Gear and Thrust Washer for GM 12 Bolt Car and Truck, 33380

from

$7.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Motive Gear – Motive Gear Differential Master Bearing Kit – Koyo, R7.5GRMK (Part No.R7.5GRMK)

Motive Gear Differential Master Bearing Kit - Koyo, R7.5GRMK

from

$138.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv
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Powertrax – Powertrax Grip LS Traction System, LS247528 (Part No.LS247528)

Powertrax Grip LS Traction System, LS247528

from

$499.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
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Yukon Gear – "Yukon Gear 18 Plate Carbon Clutches, GM 8.2""/GM 8.5""/12T/12P/Ford 8.8""/Cast Iron Vette, 16110" (Part No.16110)

"Yukon Gear 18 Plate Carbon Clutches, GM 8.2""/GM 8.5""/12T/12P/Ford 8.8""/Cast Iron Vette, 16110"

from

$483.99
Yukon Gear & Axle clutch kits fit popular GM diffs outfitted with a Yukon Dura Grip positraction unit feature 18 steel clutch plates, ensuring total traction and long-lasting performance.
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Yukon Gear – Yukon Gear Pinion Nut, 33152 (Part No.33152)

Yukon Gear Pinion Nut, 33152

from

$9.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear 14 Plate Dura Grip Composite Clutch Kit for GM 7.5""/Ford 7.5""/M35 Differentials, 16119" (Part No.16119)

"Yukon Gear 14 Plate Dura Grip Composite Clutch Kit for GM 7.5""/Ford 7.5""/M35 Differentials, 16119"

from

$202.99
This Yukon Gear & Axle clutch kit is a direct replacement for the popular Yukon Dura Grip positraction unit. Kit includes 14 composite clutches.
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USA Standard Gear – USA Standard Gear Differential Rebuild Kit, 37057 (Part No.37057)

USA Standard Gear Differential Rebuild Kit, 37057

from

$208.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.
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Yukon Gear – "Yukon Gear Standard Open Spider Gear Kit, Early GM 7.5"", 26 Spline and Large Windows, 16048" (Part No.16048)

"Yukon Gear Standard Open Spider Gear Kit, Early GM 7.5"", 26 Spline and Large Windows, 16048"

from

$149.99
Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.
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Richmond Gear – Richmond Gear Differential Pinion Shaft, CSPGM75 (Part No.CSPGM75)

Richmond Gear Differential Pinion Shaft, CSPGM75

from

$26.49
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND.
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Yukon Gear – Yukon Gear Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs, 56022 (Part No.56022)

Yukon Gear Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs, 56022

from

$188.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.
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Yukon Gear – Yukon Gear Positraction Cross Pin Bolt for GM 12 Bolt Car and Truck, 33344 (Part No.33344)

Yukon Gear Positraction Cross Pin Bolt for GM 12 Bolt Car and Truck, 33344

from

$28.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Yukon Gear – "Yukon Gear Standard Open Cross Pin (0.795"" Diameter) for 8.5"" GM – Some Eaton Positractions, 33401" (Part No.33401)

"Yukon Gear Standard Open Cross Pin (0.795"" Diameter) for 8.5"" GM - Some Eaton Positractions, 33401"

from

$49.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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National – National Multi-Purpose Seal, 8610 (Part No.8610)

National Multi-Purpose Seal, 8610

from

$18.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
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Yukon Gear – "Yukon Gear Ltd. Slip Clutch Guide, Chry 9.25/Dana 44/50/GM 12 Bolt/8.2""/8.5""/8.6""/Nis M226, 33352" (Part No.33352)

"Yukon Gear Ltd. Slip Clutch Guide, Chry 9.25/Dana 44/50/GM 12 Bolt/8.2""/8.5""/8.6""/Nis M226, 33352"

from

$8.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear Yoke for 8.2"" Bop Differential, Mech 3R U/Joint Size, U/Bolt Design, 41185" (Part No.41185)

"Yukon Gear Yoke for 8.2"" Bop Differential, Mech 3R U/Joint Size, U/Bolt Design, 41185"

from

$289.99
Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.
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Powertrax – Powertrax Differential Lock Assembly, 1930-LR (Part No.1930-LR)

Powertrax Differential Lock Assembly, 1930-LR

from

$445.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.
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Motive Gear – Motive Gear Differential Mini Spool, MS12C (Part No.MS12C)

Motive Gear Differential Mini Spool, MS12C

from

$108.99
Motive Gear Differential Mini Spool, MS12C.
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Pro-King – Pro-King Differential Pinion Shim Kit, 742G202 (Part No.742G202)

Pro-King Differential Pinion Shim Kit, 742G202

from

$6.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Yukon Gear – "Yukon Gear 1541H Alloy Rear Axle for ’98-’02 GM 7.625"" Camaro without Traction Control, 21623" (Part No.21623)

"Yukon Gear 1541H Alloy Rear Axle for '98-'02 GM 7.625"" Camaro without Traction Control, 21623"

from

$459.99
Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. High quality alloys and the latest in heat-treating technologies provide a stronger-than-stock axle for off-road, on the street, or at the track.
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Yukon Gear – Yukon Gear Positraction Pinion Gear Thrust Washer with Step-Lip Inside for GM 12P & 12T, 33382 (Part No.33382)

Yukon Gear Positraction Pinion Gear Thrust Washer with Step-Lip Inside for GM 12P & 12T, 33382

from

$14.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Victor Reinz – Victor Reinz Axle Housing Cover Gasket, 71-14823-00 (Part No.71-14823-00)

Victor Reinz Axle Housing Cover Gasket, 71-14823-00

from

$8.69
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Mr. Gasket – Mr. Gasket Differential Cover Gasket, 84B (Part No.84B)

Mr. Gasket Differential Cover Gasket, 84B

from

$22.19
Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear.
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Yukon Gear – "Yukon Gear Super Carrier Shim Kit for Ford 8.8"", GM 12 bolt car & truck, 8.6 & Vette, 55002" (Part No.55002)

"Yukon Gear Super Carrier Shim Kit for Ford 8.8"", GM 12 bolt car & truck, 8.6 & Vette, 55002"

from

$59.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.
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Motive Gear – Motive Gear Differential Mini Spool, MS7.5-26 (Part No.MS7.5-26)

Motive Gear Differential Mini Spool, MS7.5-26

from

$98.99
Motive Gear Mini-Spools replace your stock spider and side gears with a solid billet mini-spool for 100% traction to both wheels. Not recommended for street applications.
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Yukon Gear – "Yukon Gear Mini Spool for GM 7.6"" with 28 Spline Axles, 32229" (Part No.32229)

"Yukon Gear Mini Spool for GM 7.6"" with 28 Spline Axles, 32229"

from

$194.99
Yukon Mini Spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier in place of the spider gears and delivers 100% power to both tires at all times. These units are not recommended for street-driven vehicles. Full spools are recommended for vehicles with large tires or high horsepower.
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Most Popular Differential Oil for 1971 Pontiac Firebirds

Enhance your 1971 Pontiac Firebird with one of the 2 Differential Oil we have in stock, starting at just $44.99.

Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
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Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Best-Selling 1971 Pontiac Firebird Rear Differential Cover Gaskets

Upgrade your Firebird with one of our 5 best-selling Rear Differential Cover Gaskets, earning an average 4.67 stars rating across 203 reviews.

Mr. Gasket – Mr. Gasket Differential Cover Gasket, 84B (Part No.84B)

Mr. Gasket Differential Cover Gasket, 84B

from

$22.19
Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear.
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Felpro – Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 55028-1 (Part No.RDS 55028-1)

Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 55028-1

from

$11.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Felpro – Felpro Axle Housing Cover Gasket Oval Shaped 12 Bolt Hole Gasket, RDS 55029 (Part No.RDS 55029)

Felpro Axle Housing Cover Gasket Oval Shaped 12 Bolt Hole Gasket, RDS 55029

from

$8.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Mr. Gasket – Mr. Gasket Differential Cover Gasket, 84 (Part No.84)

Mr. Gasket Differential Cover Gasket, 84

from

$26.69
Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1965-1970 Buick, Olds, Pontiac, 10 bolt 8.20 inch ring gear.
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Felpro – Felpro Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket, RDS 55009 (Part No.RDS 55009)

Felpro Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket, RDS 55009

from

$9.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Top-Quality Differential Bearings for 1971 Pontiac Firebirds

Choose a high-quality OEM or aftermarket Differential Bearing for Pontiac Firebirds and enjoy top-notch performance from $7.99.

Driveworks – Driveworks Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)

Driveworks Tapered Roller Bearing, S-LM-603012

from

$7.99
Driveworks Tapered Roller Bearing, S-LM-603012.
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Driveworks – Driveworks Wheel Bearing Kit, S-RA-321 (Part No.S-RA-321)

Driveworks Wheel Bearing Kit, S-RA-321

from

$141.99
Driveworks Wheel Bearing Kit, S-RA-321.
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Yukon Gear – "Yukon Gear Positraction Cross Pin Bolt for 8.2"" GM and Cast Iron Corvette, 33345" (Part No.33345)

"Yukon Gear Positraction Cross Pin Bolt for 8.2"" GM and Cast Iron Corvette, 33345"

from

$53.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – Yukon Gear Positraction Cross Pin Bolt for GM 12 Bolt Car and Truck, 33344 (Part No.33344)

Yukon Gear Positraction Cross Pin Bolt for GM 12 Bolt Car and Truck, 33344

from

$28.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear GM 55, 8.2"", 12P, and 12T Standard Open Cross Pin Bolt, 33068" (Part No.33068)

"Yukon Gear GM 55, 8.2"", 12P, and 12T Standard Open Cross Pin Bolt, 33068"

from

$7.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Our Top Pick for a 1971 Pontiac Firebird Rear Housing Cover Gasket

Invest in a durable Rear Housing Cover Gasket for your 1971 Pontiac, knowing you’re getting trusted brands and expert craftsmanship.

Victor Reinz – Victor Reinz Axle Housing Cover Gasket, 71-14827-00 (Part No.71-14827-00)

Victor Reinz Axle Housing Cover Gasket, 71-14827-00

from

$8.29
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Differential Covers for 1971 Pontiac Firebirds

Make a smart move for your 1971 Pontiac Firebird with products all priced from $42.99 to $349.99.

Yukon Gear – "Yukon Gear Chrome Cover for 8.6"", 8.5"" and 8.2"" GM Rear, 32017" (Part No.32017)

"Yukon Gear Chrome Cover for 8.6"", 8.5"" and 8.2"" GM Rear, 32017"

from

$74.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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Spectre – Spectre W3 Differential Cover 10 Bolt, 60703 (Part No.60703)

Spectre W3 Differential Cover 10 Bolt, 60703

from

$42.99
Spectre Differential Covers are made to OEM specifications and are triple chrome plated for a lasting shine. Designed to protect the intricate moving parts of the differential, Spectre’s covers add an extra layer of protection to the vehicle’s underside. Featuring a 10-bolt design and including the necessary chrome bolts and gaskets, this differential cover is designed to fit 1964-1972 Chevy/GM intermediates, 1983-1987 Chevy/GMC 1/2 Ton two or four wheel drive rear, and 1967-1972 Chevy Camaros. Includes 10 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your application requires metric bolts.
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Yukon Gear – "Yukon Gear Polished Aluminum Cover for 8.6"", 8.2"" and 8.5"" GM Rear, 32030" (Part No.32030)

"Yukon Gear Polished Aluminum Cover for 8.6"", 8.2"" and 8.5"" GM Rear, 32030"

from

$255.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polished to perfection.
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Yukon Gear – "Yukon Gear Steel Cover for GM 8.2"" & 8.5"" Rear, 32332" (Part No.32332)

"Yukon Gear Steel Cover for GM 8.2"" & 8.5"" Rear, 32332"

from

$123.99
These Yukon replacement diff covers are a direct bolt-on.
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Yukon Gear – "Yukon Gear Chrome Cover for 8.2"" Buick, Oldsmobile, and Pontiac GM, 32015" (Part No.32015)

"Yukon Gear Chrome Cover for 8.2"" Buick, Oldsmobile, and Pontiac GM, 32015"

from

$74.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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B & M – "B & M Cast Aluminum Differential Cover For Gm 8.2"", 8.5"" & 8.6"" 10 Bolt – Black, 71502" (Part No.71502)

"B & M Cast Aluminum Differential Cover For Gm 8.2"", 8.5"" & 8.6"" 10 Bolt - Black, 71502"

from

$349.99
Our engineers designed the line of Hi-Tek differential covers to not only look good but address a number of weaknesses of the factory-stamped steel covers. First, they started by constructing the covers of thick A356.0-T6 aluminum, which dissipates heat much faster than the factory steel unit keeping the fluid temperature lower under high-stress loads vs. a steel cover. Then for added durability, we added a reinforced center bar for extra strength along with load bolts to help prevent bearing cap deflection under severe loads. The internal shape of the cover retains the smooth round back internally to help keep the fluid flow going over the ring gear to properly lubricate the bearings, the ring and pinion gears. Additional features include a magnetic drain plug for catching ferrous metal particles, MIL-Spec (MIL-A-8625) black anodized finish, machined B&M logo, and all necessary hardware and easy-to-follow detailed instructions for a quick and simple installation you can do at home.
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B & M – "B & M Cast Aluminum Differential Cover For Gm 8.2"", 8.5"" & 8.6"" 10 Bolt, 70502" (Part No.70502)

"B & M Cast Aluminum Differential Cover For Gm 8.2"", 8.5"" & 8.6"" 10 Bolt, 70502"

from

$334.99
Our engineers designed the line of Hi-Tek differential covers to not only look good but address a number of weaknesses of the factory-stamped steel covers. First, they started by constructing the covers of thick A356.0-T6 aluminum, which dissipates heat much faster than the factory steel unit keeping the fluid temperature lower under high-stress loads vs. a steel cover. Then for added durability, we added a reinforced center bar for extra strength along with load bolts to help prevent bearing cap deflection under severe loads. The internal shape of the cover retains the smooth round back internally to help keep the fluid flow going over the ring gear to properly lubricate the gears and bearings. Additional features include a magnetic drain plug for catching ferrous metal particles, a machined B&M logo and all necessary hardware, and easy-to-follow detailed instructions for a quick and simple installation you can do at home.
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Yukon Gear – Yukon Gear Polished Aluminum Cover for GM 12 Bolt Car, 32101 (Part No.32101)

Yukon Gear Polished Aluminum Cover for GM 12 Bolt Car, 32101

from

$278.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polished to perfection.
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Yukon Gear – Yukon Gear Chrome Cover for GM 12 Bolt Car, 32011 (Part No.32011)

Yukon Gear Chrome Cover for GM 12 Bolt Car, 32011

from

$62.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.
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Top-Rated Differential Brands For Your 1971 Pontiac Firebird

When it comes to finding the perfect Differential for your 1971 Pontiac Firebird, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 16 trusted brands. We carry the most popular Differential brands including Felpro, Driveworks, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $3.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1971 Pontiac Firebird, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1971 Pontiac Firebird Differentials

If you’re looking for a top-quality Differential for your 1971 Pontiac Firebird, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 2 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $8.49 and an average cost of $10.24, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1971 Pontiac Firebird come highly rated, with over 202 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 55028-1
from $11.99
(195)
Felpro Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 55028-1
“Product easy to put on and easy to work with worked great so far”

Top-Quality Driveworks 1971 Pontiac Firebird Differentials

For those in search of a high-quality Differential for their 1971 Pontiac Firebird, Advance Auto Parts offers a great selection of Driveworks Differentials. With 3 Driveworks Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $8.99, with an average price of $10.59, giving you a range of options to suit your budget. Backed by over 40 customer ratings and an average rating of 4.2 stars, Driveworks Differentials provide both reliability and excellent performance. Choosing a Driveworks Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Driveworks Taper Bearing Set, S-A-6
from $11.99
(38)
Driveworks Taper Bearing Set, S-A-6
“HELPFUL ASSOCIATE”
Driveworks Oil Seal, S-2043
from $10.79
(1)
Driveworks Oil Seal, S-2043
“Didn’t fit my 1992 K1500 10 bolt 8.5″ ring gear rear end. Was told wrong part.”
Driveworks Oil Seal, S-8460N
from $8.99
(1)
Driveworks Oil Seal, S-8460N
“Great fitment”

FAQs for 1971 Pontiac Firebird Differentials

What are the best-selling Differentials for 1971 Pontiac Firebirds?

Out of 273 Differentials that fit 1971 Pontiac Firebirds, the following parts are the top sellers:

What’s the price range for 1971 Pontiac Firebird Differentials?

The prices of Differentials for the 1971 Pontiac Firebird range from $0.91 up to $929.99 for the most premium parts.

What is the average price of a Differential for a 1971 Pontiac Firebird?

The average price for Differentials for the 1971 Pontiac Firebird is $216.02. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other Pontiac Firebird model years?

Yes, we carry Differentials for 34 model years of Pontiac Firebirds between 1967 and 2002. The following model years are the most popular for Differential purchases: 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, and 1994.

What are the cheapest Differentials for my 1971 Pontiac Firebird?

The cheapest 1971 Pontiac Firebird Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1971 Pontiac models?

Yes. We stock Differentials for 7 other popular 1971 Pontiac models. Some of the most popular are 1971 Grand Prix Differentials, 1971 Bonneville Differentials, 1971 LeMans Differentials, 1971 GTO Differentials, and 1971 Catalina Differentials.

What types of Differentials do you sell for my 1971 Pontiac Firebird?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1971 Pontiac Firebird:

Can I get help with 1971 Pontiac Firebird Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Differentials and more.

What is your return policy for Pontiac Firebird Differentials?

Advance Auto Parts keeps returns simple. For new Pontiac Firebird Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.