1979 Mercury Bobcat Differentials

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Keep Your 1979 Mercury Bobcat in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1979 Mercury Bobcat looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Rear Differential Cover Gaskets, and Differential Oil. 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, National, and Powertrax. For example, Motive Gear Differentials start at just $2.99 with an average 4.1 star rating. National and Powertrax offer similar pricing and quality, backed by strong customer feedback. With over 12 reviews and a solid 4.8 star average, you can shop with confidence knowing other Mercury Bobcat owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1979 Mercury Bobcat Differential at Advance Auto Parts is around $191.47, with a range that starts at $1.29 and goes up to $941.99. With 126 options in stock from 12 trusted brands, finding the right fit is easy. Popular picks like Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002, "Yukon Gear Cover Bolt For Ford 7.5"", 8.8"" & 9.75"", 33554", and Felpro Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13270 start at just $5.49 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 1979 Mercury Bobcat in peak condition, inside and out.

Essential 1979 Mercury Bobcat Differentials

Motive Gear – Motive Gear Differential Internal Carrier Gear Kit, F7.5BI (Part No.F7.5BI)

Motive Gear Differential Internal Carrier Gear Kit, F7.5BI

from

$149.99
Motive Gear Differential Internal Carrier Gear Kit, F7.5BI.
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Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT45 (Part No.KT45)

Schaeffler Bearing - TRB (Tapered Roller Bearing), KT45

from

$21.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
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Schaeffler – Schaeffler Tapered Roller Bearing, KT63 (Part No.KT63)

Schaeffler Tapered Roller Bearing, KT63

from

$25.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
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Yukon Gear – "Yukon Gear Flange Yoke for Ford 7.5"" Passenger and Truck (4.3"" OD), 41045" (Part No.41045)

"Yukon Gear Flange Yoke for Ford 7.5"" Passenger and Truck (4.3"" OD), 41045"

from

$314.99
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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Yukon Gear – Yukon Gear Trac Loc Spring for Ford 7.5, 33514 (Part No.33514)

Yukon Gear Trac Loc Spring for Ford 7.5, 33514

from

$67.99
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 Trac-Loc For Ford 8"" Wtih 31 Spline Axles – Aggressive Design, 26003" (Part No.26003)

"Yukon Gear Trac-Loc For Ford 8"" Wtih 31 Spline Axles - Aggressive Design, 26003"

from

$789.99
The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon-Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.
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Yukon Gear – "Yukon Gear 8"" Ford Pinion Seal, 30180" (Part No.30180)

"Yukon Gear 8"" Ford Pinion Seal, 30180"

from

$24.99
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 Pinion Support Bolt for 8"" and 9"" Ford, 33242" (Part No.33242)

"Yukon Gear Pinion Support Bolt for 8"" and 9"" Ford, 33242"

from

$6.99
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 Performance Differential Ring and Pinion, F880325 (Part No.F880325)

Motive Gear Performance Differential Ring and Pinion, F880325

from

$260.99
Motive Gear Performance Differential Ring and Pinion, F880325.
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Yukon Gear – "Yukon Gear Trac Loc Clutch Hub For 9"" Ford With 28 Splines, 16159" (Part No.16159)

"Yukon Gear Trac Loc Clutch Hub For 9"" Ford With 28 Splines, 16159"

from

$139.99
“Trac Loc clutch hub for 9″” Ford with 28 splines.”
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Pro-King – Pro-King Differential Cross Shaft, 742G930 (Part No.742G930)

Pro-King Differential Cross Shaft, 742G930

from

$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Yukon Gear – "Yukon Gear Pinion Depth Shims for Ford 8"", 55055" (Part No.55055)

"Yukon Gear Pinion Depth Shims for Ford 8"", 55055"

from

$31.99
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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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 Ford 8"" & 9"" Standard Open, Ag, & Detroit Locker Ring Gear Bolt, 33058" (Part No.33058)

"Yukon Gear Ford 8"" & 9"" Standard Open, Ag, & Detroit Locker Ring Gear Bolt, 33058"

from

$5.99
“Ford 8″” & 9″” standard Open, AG, & Detroit locker ring gear bolt. 7/16″” head, .925″” long.”
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Yukon Gear – "Yukon Gear 8"" Ford O-Ring, 30027" (Part No.30027)

"Yukon Gear 8"" Ford O-Ring, 30027"

from

$9.99
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 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 8.5"" & 8.2"" GM carrier installation kit, 57008" (Part No.57008)

"Yukon Gear 8.5"" & 8.2"" GM carrier installation kit, 57008"

from

$109.99
Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limited slip differential, a mechanical locker, or an air operated locker. These kits contain carrier bearings and races and a carrier shim kit.
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Motive Gear – Motive Gear Differential Lock Thrust Block, D3SZ4211A (Part No.D3SZ4211A)

Motive Gear Differential Lock Thrust Block, D3SZ4211A

from

$47.49
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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Pro-King – Pro-King Differential Internal Nest Kit, 761A717 (Part No.761A717)

Pro-King Differential Internal Nest Kit, 761A717

from

$309.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Felpro – Felpro Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13270 (Part No.RDS 13270)

Felpro Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 13270

from

$5.49
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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Sealed Power – Sealed Power Engine Auxiliary Shaft Bearing Set, 1460M (Part No.1460M)

Sealed Power Engine Auxiliary Shaft Bearing Set, 1460M

from

$23.99
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Yukon Gear – "Yukon Gear Side Gear with Hub for 8"" and 9"" Ford with 28 Splines, 16163" (Part No.16163)

"Yukon Gear Side Gear with Hub for 8"" and 9"" Ford with 28 Splines, 16163"

from

$46.99
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 other general maintenance items. You can count on Yukon to fulfill all your differential small parts needs.
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Yukon Gear – "Yukon Gear Master Overhaul Kit for Ford 8"" Differential, 14048" (Part No.14048)

"Yukon Gear Master Overhaul Kit for Ford 8"" Differential, 14048"

from

$299.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.
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Yukon Gear – "Yukon Gear Cover Bolt For Ford 7.5"", 8.8"" & 9.75"", 33554" (Part No.33554)

"Yukon Gear Cover Bolt For Ford 7.5"", 8.8"" & 9.75"", 33554"

from

$6.99
“Yukon 1541H alloy replacement rear axle for Dana 60, 70, and 80, 35 spline. (40″” to 43.5″”) Full float axle (8×3.96″” ). Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a full-floating axle.”
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Yukon Gear – "Yukon Gear Dana 44, Ford 8"" / 9"", and Model 20 Side Gear Thrust Washer Replacement, 33283" (Part No.33283)

"Yukon Gear Dana 44, Ford 8"" / 9"", and Model 20 Side Gear Thrust Washer Replacement, 33283"

from

$5.99
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 7.5"", 8"", 8.8"", 9"", 10.25"" Ford Redi Sleeve Yoke Saver, 30226" (Part No.30226)

"Yukon Gear 7.5"", 8"", 8.8"", 9"", 10.25"" Ford Redi Sleeve Yoke Saver, 30226"

from

$30.99
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 Grizzly Locker For Ford 8"" With 31 Spline Axles, 28007" (Part No.28007)

"Yukon Gear Grizzly Locker For Ford 8"" With 31 Spline Axles, 28007"

from

$941.99
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!
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Yukon Gear – "Yukon Gear 8"" Dropout Housing Gasket, 23010" (Part No.23010)

"Yukon Gear 8"" Dropout Housing Gasket, 23010"

from

$11.99
“8”” dropout housing gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear”
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Most Popular Differential Covers for 1979 Mercury Bobcats

Enhance your 1979 Mercury Bobcat with one of the 3 Differential Covers we have in stock, starting at just $8.99.

Yukon Gear – "Yukon Gear Outer Oil Slinger For Ford 7.5"", 8.8"", 9"", 10.25"", 33022" (Part No.33022)

"Yukon Gear Outer Oil Slinger For Ford 7.5"", 8.8"", 9"", 10.25"", 33022"

from

$8.99
“Replacement outer oil slinger for Ford 7.5″”, 8.8″”, 9″”, 10.25″”, Nissan Titan rear, Dana 44 Rubicon & 44 JK non-Rubicon.”
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Yukon Gear – Yukon Gear Ford OEM Steel Differential Cover, 32364 (Part No.32364)

Yukon Gear Ford OEM Steel Differential Cover, 32364

from

$99.99
These Yukon replacement diff covers are a direct bolt-on.
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Yukon Gear – "Yukon Gear Chrome Cover for 7.5"" Ford, 32008" (Part No.32008)

"Yukon Gear Chrome Cover for 7.5"" Ford, 32008"

from

$42.99
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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Best-Selling 1979 Mercury Bobcat Rear Differential Cover Gaskets

Upgrade your Bobcat with one of our 2 best-selling Rear Differential Cover Gaskets.

Yukon Gear – "Yukon Gear 8"" Dropout Housing Gasket, 23010" (Part No.23010)

"Yukon Gear 8"" Dropout Housing Gasket, 23010"

from

$11.99
“8”” dropout housing gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear”
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Victor Reinz – Victor Reinz Differential Cover Gasket, 71-14821-00 (Part No.71-14821-00)

Victor Reinz Differential Cover Gasket, 71-14821-00

from

$6.49
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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Top-Quality Differential Oil for 1979 Mercury Bobcats

Choose a high-quality OEM or aftermarket Differential Oil for Mercury Bobcats and enjoy top-notch performance from $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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Top Picks for 1979 Mercury Bobcat Differential Bearings

Invest in one of our 2 durable Differential Bearings for your 1979 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

Schaeffler – Schaeffler Bearing – TRB (Tapered Roller Bearing), KT45 (Part No.KT45)

Schaeffler Bearing - TRB (Tapered Roller Bearing), KT45

from

$21.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
See More

Driveworks – Driveworks Clutch Release Bearing, S-F-33126 (Part No.S-F-33126)

Driveworks Clutch Release Bearing, S-F-33126

from

$5.99
Driveworks Clutch Release Bearing, S-F-33126.
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Our Differential Pinion Seals for 1979 Mercury Bobcats

Make a smart move for your 1979 Mercury Bobcat with our Differential Pinion Seal for $24.99.

Yukon Gear – "Yukon Gear 8"" Ford Pinion Seal, 30180" (Part No.30180)

"Yukon Gear 8"" Ford Pinion Seal, 30180"

from

$24.99
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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Top-Rated Differential Brands For Your 1979 Mercury Bobcat

When it comes to finding the perfect Differential for your 1979 Mercury Bobcat, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 12 trusted brands. We carry the most popular Differential brands including Powertrax, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 5.0 stars) and competitive prices, as low as $2.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1979 Mercury Bobcat, providing peace of mind with parts that meet or exceed OEM standards.

Popular Powertrax 1979 Mercury Bobcat Differentials

If you’re looking for a top-quality Differential for your 1979 Mercury Bobcat, Advance Auto Parts has exactly what you need with our selection of Powertrax Differentials. We have 1 Powertrax Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $444.99, you’ll find the perfect Differential for your needs and budget. Powertrax Differentials for the 1979 Mercury Bobcat come highly rated, with over 1 customer reviews and an impressive average rating of 5.0 stars. Choosing a Powertrax Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Powertrax Differential Lock Assembly, 1830-LR
from $444.99
(1)
Powertrax Differential Lock Assembly, 1830-LR
“Fast service and the right part.”

Top-Quality National 1979 Mercury Bobcat Differentials

For those in search of a high-quality Differential for their 1979 Mercury Bobcat, Advance Auto Parts offers a great selection of National Differentials. With 1 National 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 $11.99, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
National Bearing Race, LM501314
from $11.99
(2)
National Bearing Race, LM501314
“good quality & price”

FAQs for 1979 Mercury Bobcat Differentials

What are the best-selling Differentials for 1979 Mercury Bobcats?

Out of 126 Differentials that fit 1979 Mercury Bobcats, the following parts are the top sellers:

What’s the price range for 1979 Mercury Bobcat Differentials?

The prices of Differentials for the 1979 Mercury Bobcat range from $1.29 up to $941.99 for the most premium parts.

What is the average price of a Differential for a 1979 Mercury Bobcat?

The average price for Differentials for the 1979 Mercury Bobcat is $191.47. 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 Mercury Bobcat model years?

Yes, we carry Differentials for 4 model years of Mercury Bobcats between 1975 and 1980. The following model years are the most popular for Differential purchases: 1980, 1978, 1977, 1976, and 1975.

What are the cheapest Differentials for my 1979 Mercury Bobcat?

The cheapest 1979 Mercury Bobcat Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1979 Mercury models?

Yes. We stock Differentials for 5 other popular 1979 Mercury models. Some of the most popular are 1979 Cougar Differentials, 1979 Grand Marquis Differentials, 1979 Capri Differentials, 1979 Zephyr Differentials, and 1979 Marquis Differentials.

What are the top-rated Differentials that fit the 1979 Mercury Bobcat?

The one 1979 Mercury Bobcat Differential we have in stock is the Pro-King Differential Ring Gear Bolt, 761A935. It costs $1.29.

What types of Differentials do you sell for my 1979 Mercury Bobcat?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1979 Mercury Bobcat:

Can I get help with 1979 Mercury Bobcat Differential orders?

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

What is your return policy for Mercury Bobcat Differentials?

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