1975 Mercury Comet Differentials

Essential 1975 Mercury Comet Differentials

Yukon Gear – Side Gear With Hub For 8" And 9" Ford With 28 Splines (Part No.16163)

Side Gear With Hub For 8" And 9" Ford With 28 Splines

from

$46.99
Side gear with hub for 8″ and 9″ Ford with 28 splines.

Product Features:
  • Side gear with hub
  • Fits Ford 8″ and 9″ standard open differential and Trac Loc positraction with 28 spline axles
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Yukon Gear – O-Ring For 9" Ford (Part No.30028)

O-Ring For 9" Ford

from

$14.99
O-ring for 9″ Ford.Yukon Mighty seal.

Product Features:
  • Pinion support o-ring
  • Fits Ford 9″
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Felpro – Differential Carrier Gasket (Part No.RDS 13270)

Differential Carrier Gasket

from

$4.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Motive Gear – Differential Crush Sleeve (Part No.3507575)

Differential Crush Sleeve

from

$2.49


Product Features:
  • CRUSH SLEEVE 7.25 & 8.25 MIN ORDER 5000
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Yukon Gear – Trac Loc Case For Ford 9" (Part No.20079)

Trac Loc Case For Ford 9"

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$339.99
9″ TracLoc case, bare, 28 & 31 spline, 2or4 PIN, 4 TAB clutches.

Product Features:
  • Trac Loc positraction carrier case
  • Does not include spider gears
  • Fits Ford 9″ with 28 or 31 spline axles
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Yukon Gear – Adjuster Lock Bolt 3.062" & 3.250" Ford 9" Drop Out (Part No.32149)

Adjuster Lock Bolt 3.062" & 3.250" Ford 9" Drop Out

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$3.99
Adjuster lock bolt 3.062″ & 3.250″ Yukon Ford 9″ Drop Out.

Product Features:
  • Side adjuster lock bolt
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Yukon Gear – Star Washers, 3.250" Ford 9" Drop Out New Design Only (Part No.32144)

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

from

$4.99
STAR washers, 3.250″ Yukon Ford 9″ Drop Out new design ONLY.

Product Features:
  • Star washer
  • Fits Ford 9″
  • 3.250″ designs only
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Yukon Gear – Trac-Loc For Ford 8" Wtih 28 Spline Axles – Street Design (Part No.26002)

Trac-Loc For Ford 8" Wtih 28 Spline Axles - Street Design

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.

Product Features:
  • Fits Ford 8″ with 28 spline axles
  • Trac Loc positraction
  • Clutch style positraction
  • Street design
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
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Yukon Gear – Dropout Housing Stud For Ford 8" & 9" (Part No.32338)

Dropout Housing Stud For Ford 8" & 9"

from

$7.99
Product Features:
  • Housing stud
  • Fits Ford 8″ and 9″
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Yukon Gear – Standard Open Spider Gear Kit For And 9" Ford With 28 Spline Axles And 4-Pinion Design (Part No.16032)

Standard Open Spider Gear Kit For And 9" Ford With 28 Spline Axles And 4-Pinion Design

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$315.99
Yukon standard open spider gear kit for and 9″ Ford with 28 spline axles and 4-pinion design. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fits Ford 8″ and 9″ open differential with 28 spline axles
  • Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
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Yukon Gear – 9" Ford Gasket (Part No.23012)

9" Ford Gasket

from

$11.99
9″ Ford gasket.

Product Features:
  • Dropout gasket
  • Fits Ford 9″
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Yukon Gear – Trac Loc Clutch Hub For 9" Ford With 28 Splines (Part No.16159)

Trac Loc Clutch Hub For 9" Ford With 28 Splines

from

$139.99
Trac Loc clutch hub for 9″ Ford with 28 splines.

Product Features:
  • Clutch hub
  • Fits Ford 8″ and 9″ 28 spline Trac Loc
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Richmond Gear – Differential Cross Shaft (Part No.CSPF9)

Differential Cross Shaft

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!

Product Features:
  • For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
  • The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
  • Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
  • Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
  • Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.
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Powertrax – Grip PRO Traction System (Part No.GT109031)

Grip PRO Traction System

from

$496.99
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 – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

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$99.99
Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:
  • Includes three quarts of Redline Shockproof oil
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Yukon Gear – Pinion Seal For ’61-’85 9" Ford (Part No.30137)

Pinion Seal For '61-'85 9" Ford

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$17.99
Pinion seal for ’61-’85 9″ Ford. 3″ OD.Yukon Mighty seal.

Product Features:
  • Pinion seal
  • Fits 1961-1985 Ford 9″
  • 3.00″ O.D.
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Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.SS9)

Differential Pinion Solid Spacer Kit w/Shims

from

$45.99
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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National – Bearings (Part No.HM89443)

Bearings

from

$38.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Pinion Depth Shims For Ford 8" (Part No.55055)

Pinion Depth Shims For Ford 8"

from

$31.99
8″ Ford pinion shim kit.

Product Features:
  • Pinion depth shims for Ford 8″
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Yukon Gear – Bearing Install Kit For Ford 9" Differential, Lm603011 Bearings (Part No.11045)

Bearing Install Kit For Ford 9" Differential, Lm603011 Bearings

from

$257.99
Yukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. This kit uses carrier bearings & races with an I.D. of 1.780″ and an O.D. of 3.062″. This kit uses Timken bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your ring & pinion set.

Product Features:
  • Fits Ford 9″ with LM603011 carrier races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, pilot bearing, marking compound and brush.
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Yukon Gear – Trac Loc Clutch Guide For 9" Ford (Part No.33250)

Trac Loc Clutch Guide For 9" Ford

from

$4.99
Trac Loc clutch guide for 9″ Ford.

Product Features:
  • Clutch guide
  • Fits Ford 8″ and 9″
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Yukon Gear – Dana 44, Ford 8" / 9", And Model 20 Side Gear Thrust Washer Replacement (Part No.33283)

Dana 44, Ford 8" / 9", And Model 20 Side Gear Thrust Washer Replacement

from

$5.99
Product Features:
  • Side gear thrust washer for Ford 8″, Ford 9″ and AMC Model 20
  • 0.030″ thick
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Dorman – Differential Pinion Yoke Assembly (Part No.697-527)

Differential Pinion Yoke Assembly

from

$172.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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Yukon Gear – Pinion Install Kit For Ford 8" Differential (Part No.13040)

Pinion Install Kit For Ford 8" Differential

from

$251.99
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:
  • Fits Ford 8″
  • Included are pinion bearings and races, pinion seal, pinion nut, crush sleeve, complete pinion shim kit, and marking compound with brush.
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Yukon Gear – Mini Spool For Ford 9" With 28 Spline Axles (Part No.32056)

Mini Spool For Ford 9" With 28 Spline Axles

from

$59.99
Mini Spool 8″ and 9″ for Ford with 28 spline axles. Cross is bored for three cross pins. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier and give 100% power to both tires at all times. These units are not recommended for street-driven vehicles. We recommend full spools for vehicles with large tires or high horsepower. These units come with a one year warranty against manufacturing defects.

Product Features:
  • Fits Ford 9″ with 28 spline axles
  • Installs into a standard open carrier case
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
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Yukon Gear – 9" Ford Pinion Nut, 35 Spline Large Pinion Oversize (Part No.33161)

9" Ford Pinion Nut, 35 Spline Large Pinion Oversize

from

$26.99
9″ Ford pinion nut, 35 spline Large pinion oversize.

Product Features:
  • Pinion nut
  • Fits Ford 9″ with 35 spline pinion
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Yukon Gear – Bearing Race Driver (Part No.56023)

Bearing Race Driver

from

$219.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits M88010 race
  • All steel construction
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USA Standard Gear – 9" Ford Spartan Locker Cross Pin, Extra Short (Part No.17044)

9" Ford Spartan Locker Cross Pin, Extra Short

from

$22.99
9″ FORD SPARTAN LOCKER EXTRA SHORT Cross Pin SHAFT .

Product Features:
  • USA Standard Gear heavy-duty cross pin shaft
  • Fits Ford 9″
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1975 Mercury Comet Differentials

Maybe you’re in the middle of a full rebuild of that 1975 Mercury Comet. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 356 different Differentials in our inventory ranging from $1.99 to $1,211.99. That means you can find the exact parts or products you need to keep that 1975 Mercury Comet running smoothly.

Differentials are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1975 Mercury Comet. Driveworks, Yukon Gear, and National are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1975 Mercury Comet, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 66 reviews in this category, some of the top rated parts include Differential Crush Sleeve with 5.0 stars and Differential Pinion Nut with 4.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1975 Mercury Comet rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 1975 Mercury Comet Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1975 Mercury Comet demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Comet the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular National Differentials

We carry National parts in our stock across Differential Pinion Seals and Differential Pinion Pilot Bearings categories, plus more. For a 1975 Mercury Comet, our most popular National Differentials include:
Multi Purpose Seal
from $11.79
(2)
Multi Purpose Seal
Differential Pinion Seals
Shaft Repair Sleeve
from $37.99
(1)
Shaft Repair Sleeve
Differential Pinion Pilot Bearings
Bearings
from $18.79
(3)
Bearings
Front Differential Pinion Bearings

Top 1975 Mercury Comet Differentials from Driveworks

Driveworks products are another trusted brand when it comes to Differentials for your 1975 Mercury Comet. Popular Driveworks parts include:
Tapered Cone/Cup Wheel Bearing Set
from $13.99
(14)
Tapered Cone/Cup Wheel Bearing Set
Differential Bearings

FAQs for 1975 Mercury Comet Differentials

What are the most purchased Differentials for the 1975 Mercury Comet?

Out of 356 Differentials for the 1975 Mercury Comet, the most popular in our inventory are:
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil
Copper Washer For Ford 9" & 8" Dropout Housing
from $5.99
This product is not rated
Copper Washer For Ford 9" & 8" Dropout Housing
Complete Differentials
Differential Carrier Gasket
from $4.49
This product is not rated
Differential Carrier Gasket
Automatic Transmission Differential Cover Gaskets

What are the top-rated 1975 Mercury Comet Differentials?

Top-rated Differentials for your 1975 Mercury Comet based on customer reviews/ratings are:
Differential Crush Sleeve
from $2.49
(1)
Differential Crush Sleeve
“High quality, would buy again”
Differential Pinion Nut
from $6.49
(1)
Differential Pinion Nut
“If a pinion nut is ever removed from the pinion shaft, it is recommended NOT to reuse it. Replace it with a BRAND NEW nut, even if the old nut is rel”