1972 Mercury Comet Differentials

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Keep Your 1972 Mercury Comet in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1972 Mercury Comet 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, Felpro, and Driveworks. For example, Motive Gear Differentials start at just $2.99 with an average 4.1 star rating. Felpro and Driveworks offer similar pricing and quality, backed by strong customer feedback. With over 747 reviews and a solid 4.3 star average, you can shop with confidence knowing other Mercury Comet owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1972 Mercury Comet Differential at Advance Auto Parts is around $261.37, with a range that starts at $2.99 and goes up to $1,211.99. With 335 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002, Dorman – Help Pinion Crush Sleeves, 81056, and Motive Gear Differential Pinion Nut, 379570S start at just $6.99 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 1972 Mercury Comet in peak condition, inside and out.

Essential 1972 Mercury Comet Differentials

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 Steel Spool for Ford 9"" with 35 Spline Axles, Small Bearing, 32098" (Part No.32098)

"Yukon Gear Steel Spool for Ford 9"" with 35 Spline Axles, Small Bearing, 32098"

from

$404.99
Yukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.
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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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Motive Gear – Motive Gear Differential Crush Sleeve, 3507575 (Part No.3507575)

Motive Gear Differential Crush Sleeve, 3507575

from

$2.99
Motive Gear Differential Crush Sleeve, 3507575.
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Yukon Gear – "Yukon Gear Trac-Loc For Ford 8"" Wtih 28 Spline Axles – Street Design, 26002" (Part No.26002)

"Yukon Gear Trac-Loc For Ford 8"" Wtih 28 Spline Axles - Street Design, 26002"

from

$889.99
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 Star Washers, 3.250"" Ford 9"" Drop Out New Design Only, 32144" (Part No.32144)

"Yukon Gear Star Washers, 3.250"" Ford 9"" Drop Out New Design Only, 32144"

from

$4.99
Yukon Gear & Axle dropouts are heavy duty. They feature upgraded nodular iron construction and a larger-than-OEM design to provide unrivaled strength and reliability in racing and off-road applications.
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Yukon Gear – "Yukon Gear Standard Open and Tracloc Cross Pin Block for 9"" Ford, 33336" (Part No.33336)

"Yukon Gear Standard Open and Tracloc Cross Pin Block for 9"" Ford, 33336"

from

$30.99
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 Spring Plate for Ford 9"" & 8, 33517" (Part No.33517)

"Yukon Gear Trac Loc Spring Plate for Ford 9"" & 8, 33517"

from

$10.99
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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Schaeffler – Schaeffler Cone, KL44649 (Part No.KL44649)

Schaeffler Cone, KL44649

from

$11.99
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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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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Yukon Gear – "Yukon Gear High Performance Ring & Pinion Gear Set For Ford 9"" In A 3.70 Ratio, 24106" (Part No.24106)

"Yukon Gear High Performance Ring & Pinion Gear Set For Ford 9"" In A 3.70 Ratio, 24106"

from

$414.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.
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Powertrax – Powertrax Grip LOK Traction System, LK109031 (Part No.LK109031)

Powertrax Grip LOK Traction System, LK109031

from

$679.99
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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Motive Gear – Motive Gear Differential Pinion Bearing Spacer, SS9 (Part No.SS9)

Motive Gear Differential Pinion Bearing Spacer, SS9

from

$45.99
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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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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Yukon Gear – "Yukon Gear Positraction Internals for Ford 8""/9"" with 28 Spline Axles, 4-Pinion Design, 16023" (Part No.16023)

"Yukon Gear Positraction Internals for Ford 8""/9"" with 28 Spline Axles, 4-Pinion Design, 16023"

from

$315.99
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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Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)

Driveworks Taper Bearing Set, S-A-5

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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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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Yukon Gear – "Yukon Gear Extra HD 3.250"" Nodular Iron Dropout For Ford 9"" With Load Bolt, 32151" (Part No.32151)

"Yukon Gear Extra HD 3.250"" Nodular Iron Dropout For Ford 9"" With Load Bolt, 32151"

from

$877.99
“Yukon Extra HD 3.250″” nodular Iron dropout for Ford 9″” with load bolt. Yukon nodular iron dropouts feature a 5/8″” cap bolt and forged caps for maximum strength. Load bolt design prevents gear deflection under heavy loads. Rated up to 1400HP!”
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Yukon Gear – "Yukon Gear Fill Plug For Ford 9"", 1/2"" Thread, 33539" (Part No.33539)

"Yukon Gear Fill Plug For Ford 9"", 1/2"" Thread, 33539"

from

$10.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.
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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 7.25"" Ford & 6.75"" Ford Pinion Seal, 30173" (Part No.30173)

"Yukon Gear 7.25"" Ford & 6.75"" Ford Pinion Seal, 30173"

from

$55.99
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 Install Kit for Ford 8"" Differential, 13040" (Part No.13040)

"Yukon Gear Pinion Install Kit for Ford 8"" Differential, 13040"

from

$251.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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USA Standard Gear – USA Standard Gear Differential Spider Gear Kits, 39017 (Part No.39017)

USA Standard Gear Differential Spider Gear Kits, 39017

from

$198.99
Spindle bearing seal for Dana 30 & 44. This replaces Spicer part number 36361.
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Yukon Gear – "Yukon Gear Pinion Gear and Thrust Washer for 8"" and 9"" Ford, Model 20, and 7.25"" Chrysler, 33301" (Part No.33301)

"Yukon Gear Pinion Gear and Thrust Washer for 8"" and 9"" Ford, Model 20, and 7.25"" Chrysler, 33301"

from

$4.99
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 9"" Ford Gasket, 23012" (Part No.23012)

"Yukon Gear 9"" Ford Gasket, 23012"

from

$11.99
“9”” Ford gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear”
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Yukon Gear – "Yukon Gear Short Yoke for Ford 9"" with 28 Spline Pinion and A 1310 U/Joint Size, 41054" (Part No.41054)

"Yukon Gear Short Yoke for Ford 9"" with 28 Spline Pinion and A 1310 U/Joint Size, 41054"

from

$121.99
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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Motive Gear – Motive Gear Differential Pinion Shim Kit, 2102 (Part No.2102)

Motive Gear Differential Pinion Shim Kit, 2102

from

$21.49
Motive Gear Differential Pinion Shim Kit, 2102.
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Driveworks – Driveworks Ball Bearing, S-L-44649 (Part No.S-L-44649)

Driveworks Ball Bearing, S-L-44649

from

$5.99
Driveworks Ball Bearing, S-L-44649.
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Most Popular Differential Oil for 1972 Mercury Comets

Enhance your 1972 Mercury Comet 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 1972 Mercury Comet Rear Differential Cover Gaskets

Upgrade your Comet with one of our 6 best-selling Rear Differential Cover Gaskets, earning an average 5 stars rating across 9 reviews.

Felpro – Felpro Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 55074 (Part No.RDS 55074)

Felpro Differential Carrier Gasket Oval Shaped 10 Bolt Hole Gasket, RDS 55074

from

$9.99
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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Yukon Gear – "Yukon Gear 9"" Ford Gasket, 23012" (Part No.23012)

"Yukon Gear 9"" Ford Gasket, 23012"

from

$11.99
“9”” Ford gasket. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear”
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Mr. Gasket – "Mr. Gasket Rear End Gasket – Ford 9"" – Blend Of Nitrile Rubber And Fiber For Excellent Sealing And Durability, 82" (Part No.82)

"Mr. Gasket Rear End Gasket - Ford 9"" - Blend Of Nitrile Rubber And Fiber For Excellent Sealing And Durability, 82"

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 1957-1981 Ford 10 bolt 9 inch ring gear.
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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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Victor Reinz – Victor Reinz Differential Cover Gasket, 71-14829-00 (Part No.71-14829-00)

Victor Reinz Differential Cover Gasket, 71-14829-00

from

$8.99
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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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 Bearings for 1972 Mercury Comets

Choose a high-quality OEM or aftermarket Differential Bearing for Mercury Comets and enjoy top-notch performance from $21.99.

Yukon Gear – "Yukon Gear One (1) Specialty Bearing Race To Adapt Small Bearing Journal Into 3.25"" Dropout, 32157" (Part No.32157)

"Yukon Gear One (1) Specialty Bearing Race To Adapt Small Bearing Journal Into 3.25"" Dropout, 32157"

from

$51.99
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. For all your differential small parts needs, look no further than Yukon.
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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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Our Top Pick for a 1972 Mercury Comet Differential Cover

Invest in a durable Differential Cover for your 1972 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

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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Our Top-Rated Differential Carrier Bearing Set for 1972 Mercury Comets

Make a smart move for your 1972 Mercury Comet with our Differential Carrier Bearing Set for $11.99.

Driveworks – Driveworks Taper Bearing Set, S-A-5 (Part No.S-A-5)

Driveworks Taper Bearing Set, S-A-5

from

$11.99
Value-priced bearing meets all cataloged application requirements.
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Top-Rated Differential Brands For Your 1972 Mercury Comet

When it comes to finding the perfect Differential for your 1972 Mercury Comet, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 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 $2.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1972 Mercury Comet, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1972 Mercury Comet Differentials

If you’re looking for a top-quality Differential for your 1972 Mercury Comet, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 1 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $9.99, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1972 Mercury Comet come highly rated, with over 9 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.

Top-Quality Driveworks 1972 Mercury Comet Differentials

For those in search of a high-quality Differential for their 1972 Mercury Comet, Advance Auto Parts offers a great selection of Driveworks Differentials. With 1 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 $11.99, giving you a range of options to suit your budget. Backed by over 70 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-5
from $11.99
(70)
Driveworks Taper Bearing Set, S-A-5
“Great”

FAQs for 1972 Mercury Comet Differentials

What are the best-selling Differentials for 1972 Mercury Comets?

Out of 335 Differentials that fit 1972 Mercury Comets, the following parts are the top sellers:

What’s the price range for 1972 Mercury Comet Differentials?

The prices of Differentials for the 1972 Mercury Comet range from $2.99 up to $1,211.99 for the most premium parts.

What is the average price of a Differential for a 1972 Mercury Comet?

The average price for Differentials for the 1972 Mercury Comet is $261.37. 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 Comet model years?

Yes, we carry Differentials for 15 model years of Mercury Comets between 1960 and 1977. The following model years are the most popular for Differential purchases: 1977, 1976, 1975, 1974, 1973, 1971, 1969, 1968, and 1967.

Does Advance Auto Parts sell Differentials for any other 1972 Mercury models?

Yes. We stock Differentials for 5 other popular 1972 Mercury models. Some of the most popular are 1972 Cougar Differentials, 1972 Monterey Differentials, 1972 Colony Park Differentials, 1972 Montego Differentials, and 1972 Capri Differentials.

What types of Differentials do you sell for my 1972 Mercury Comet?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1972 Mercury Comet:

Can I get help with 1972 Mercury Comet 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 Comet Differentials?

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