GMC K15 Differentials

Your One-Stop Shop For Trusted GMC K15 Differentials

If you’re in search of GMC K15 Differentials aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 399 Differentials from top brands with prices ranging from $0.91 to $1,969.99.

Beyond great prices, we stock trusted brands manufacturing all types of Differentials for your GMC K15.

And don’t forget to read customer reviews across all Differentials categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Differentials have to cost top dollar, and we prove it. Browse our top GMC K15 Differentials below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential GMC K15 Differentials

Yukon Gear – 8.5" & 8.2" GM carrier installation kit (Part No.57008)

8.5" & 8.2" GM carrier installation kit

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.

Product Features:
  • Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
  • Includes carrier bearings and races and “super” carrier shim kit
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Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

from

$9.99
5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:
  • Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
  • 1/2″ head
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Yukon Gear – Differential (Part No.29101)

Differential

from

$271.99
Differential

Yukon Gear – Power Lok Replacement Internals, Dana 44/Chrysler 8.75", 30 Spline (Part No.16005)

Power Lok Replacement Internals, Dana 44/Chrysler 8.75", 30 Spline

from

$503.99
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.

Product Features:
  • Spider gear kit
  • Fit Dana Spicer 44 and Chrysler 8.75″ Power Lok positraction
  • Includes two side gears, four pinion gears, cross pin shafts and side gear thrust washers.
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Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-37)

Tapered Cone/Cup Wheel Bearing Set

from

$12.49
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Motive Gear – Differential Ring and Pinion (Part No.D44-538)

Differential Ring and Pinion

from

$227.99


Product Features:
  • DANA-44 R/P 5.38 STD MG
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Yukon Gear – Bearing Race Driver for Dana 25, 27, 30, 44, 50, and 53 Differentials (Part No.56003)

Bearing Race Driver for Dana 25, 27, 30, 44, 50, and 53 Differentials

from

$215.99
Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.

Product Features:
  • For Dana 25, 27, 30, 44, 50, and 53 differentials
  • Fits 02820 race
  • Ensures accurate installation of bearing races
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Pro-King – Differential Cross Shaft (Part No.742G673)

Differential Cross Shaft

from

$28.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
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Yukon Gear – Pinion Install Kit for GM 8.5" Front Differential (Part No.13070)

Pinion Install Kit for GM 8.5" Front Differential

from

$173.99
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.

Product Features:
  • Fits GM 8.5″ front
  • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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Yukon Gear – GM 12 Bolt Truck Crush Sleeve (Part No.33105)

GM 12 Bolt Truck Crush Sleeve

from

$11.99
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.

Product Features:
  • Crush sleeve for GM 12 bolt truck
  • 2.350″ tall
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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
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.

Product Features:
  • Side gear thrust washer for Ford 8″, Ford 9″ and AMC Model 20
  • 0.030″ thick
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Yukon Gear – Power Lok Button Kit for Dana 30, Dana 44 & Chrysler 8.75" (Part No.33536)

Power Lok Button Kit for Dana 30, Dana 44 & Chrysler 8.75"

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.

Product Features:
  • Power Lok button kit
  • Fits Dana Spicer 30, 44 and Chrysler 8.75″
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Motive Gear – Differential Gear Install Kit (Part No.GM12IK)

Differential Gear Install Kit

from

$69.99


Product Features:
  • MINI INSTALL KIT GM 12BLT 8.875 TRUCK
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Pro-King – Differential Cover Gasket (Part No.742G303A)

Differential Cover Gasket

from

$31.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
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Motive Gear – Differential Pinion Nut (Part No.3752901)

Differential Pinion Nut

from

$7.99
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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Yukon Gear – Replacement Front Axle Inner Seal Redi-Sleeve For Dana 44 & 8.5" GM (Part No.30219)

Replacement Front Axle Inner Seal Redi-Sleeve For Dana 44 & 8.5" GM

from

$83.99
Replacement front axle inner seal redi-sleeve for Dana 44 & 8.5″ GM.Yukon Mighty seal.

Product Features:
  • Axle Redi-sleeve
  • Fits Dana Spicer 44
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Yukon Gear – 12P, 12T, CI Vet, & 55GM 8460N Redi Sleeve Yoke Saver (Part No.30225)

12P, 12T, CI Vet, & 55GM 8460N Redi Sleeve Yoke Saver

from

$109.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:
  • Pinion Redi-sleeve
  • Fits GM 12 bolt passenger car, 12 bolt truck and 1963-1979 Corvette
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USA Standard Gear – Ring/Pinion Sets (Part No.36181)

Ring/Pinion Sets

from

$349.99
Ring/Pinion Sets

Yukon Gear – Standard Open and Positraction Cross Pin Shaft for GM 12T, 12P, and 55T (Part No.33406)

Standard Open and Positraction Cross Pin Shaft for GM 12T, 12P, and 55T

from

$23.99
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.

Product Features:
  • Cross pin shaft for GM 12 bolt passenger car and truck
  • Fits standard open and positraction applications
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Yukon Gear – Steel Spool for GM 12 Bolt Truck with 30 Spline Axles, 3.73 & Up (Part No.32190)

Steel Spool for GM 12 Bolt Truck with 30 Spline Axles, 3.73 & Up

from

$454.99
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 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.

Product Features:
  • Fits GM 12 bolt truck with 30 spline axles
  • 3.73 and up ratio only
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
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Pro-King – Differential Carrier Shim Kit (Part No.741A200)

Differential Carrier Shim Kit

from

$19.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
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Pro-King – Differential Cover Plug (Part No.742G484)

Differential Cover Plug

from

$6.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
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Yukon Gear – Dana 30 & Dana 44 Power Lok Bolt, Left Hand, & 8.75" Chrysler & 55P (Part No.33234)

Dana 30 & Dana 44 Power Lok Bolt, Left Hand, & 8.75" Chrysler & 55P

from

$26.99
Dana 30 & Dana 44 Power Lok bolt, left hand, & 8.75″ Chrysler & 55P.

Product Features:
  • Power Lok case bolt for Dana Spicer 30, Dana Spicer 44, Chrysler 8.75″ and 1955-1964 GM passenger car
  • Left hand thread
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Dorman – Differential Pinion Yoke Assembly (Part No.697-537)

Differential Pinion Yoke Assembly

from

$289.99
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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Richmond Gear – Differential Mini Spool (Part No.78-1028-1)

Differential Mini Spool

from

$124.99
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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GMC K15 Differentials List

Differentials Brands You Can Trust For Your GMC K15

16 trusted brands of Differentials line our shelves, ready to help keep your GMC K15 running smooth. Below are some of the most popular brands and their top Differentials offerings:

Popular Mr. Gasket Differentials

Mr. Gasket products for the GMC K15 span several categories. Some of the highest-rated Mr. Gasket Differentials that will fit your GMC K15 are:
Differential Gasket
from $21.49
(1)
Differential Gasket
Rear Differential Cover Gaskets

Most Purchased GMC K15 Differentials from Valvoline

When you buy the most frequently purchased Valvoline brand Differentials, you can be confident it will be the right part for your GMC K15. Here are the Valvoline Differentials Advanced Auto customers buy the most:
Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
from $10.99
(195)
Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
Rear Differential Cover Gaskets
3 Qt - 80W90 Conventional Gear Oil with Posi Additive
from $57.99
This product is not rated
3 Qt – 80W90 Conventional Gear Oil with Posi Additive
Differential Oil

FAQs for GMC K15 Differentials

What are the most purchased Differentials for the GMC K15?

Out of 399 Differentials for the GMC K15, the most popular in our inventory are:
Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
from $10.99
(195)
Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
Rear Differential Cover Gaskets
Tapered Cone/Cup Wheel Bearing Set
from $12.49
(17)
Tapered Cone/Cup Wheel Bearing Set
Differential Carrier Bearing Set
3 Qt - 80W90 Conventional Gear Oil with Posi Additive
from $57.99
This product is not rated
3 Qt – 80W90 Conventional Gear Oil with Posi Additive
Differential Oil

What are the top-rated GMC K15 Differentials?

Top-rated Differentials for your GMC K15 based on customer reviews/ratings are:
Multi-Purpose Seal
from $22.49
(20)
Multi-Purpose Seal
“Perfect replacement for my vintage Pontiacs. I recommend this particular seal to al of my customers.”
Differential Shaft Lock Bolt
from $6.79
(11)
Differential Shaft Lock Bolt
“great”