1975 GMC K15 Differentials

Essential 1975 GMC K15 Differentials

Yukon Gear – Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette (Part No.55002)

Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette

from

$52.99
Product Features:
  • Super carrier shim kit for Ford 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
  • Interlocking design makes installation much easier
See More

National – Shaft Repair Sleeve (Part No.99212)

Shaft Repair Sleeve

from

$41.49
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.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
See More

Dorman – Ring and Pinion Bearing Installation Kit (Part No.697-109)

Ring and Pinion Bearing Installation Kit

from

$227.99
This differential bearing kit includes all necessary installation components for a differential ring and pinion on certain vehicle years, makes and models.

Product Features:
  • Convenient kit – this ring and pinion bearing installation kit includes all necessary components for a complete repair on certain vehicle applications
  • Related repair – smart to have on hand when installing a differential ring and pinion
  • Durable construction – built for reliable longevity, free of defects in materials and workmanship
  • Trustworthy quality – backed by team of designers and engineers in the United States
See More

Pro-King – Differential Cover Plug (Part No.742G484)

Differential Cover Plug

from

$6.59
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Yukon Gear – Positraction Cross Pin Bolt For GM 12 Bolt Car And Truck (Part No.33344)

Positraction Cross Pin Bolt For GM 12 Bolt Car And Truck

from

$37.99
Positraction cross pin bolt for GM 12P and 12T.

Product Features:
  • Cross pin bolt for GM 12 bolt passenger car and truck
  • For OEM positraction applications only
See More

National – Bearings (Part No.31594)

Bearings

from

$29.99
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
See More

Dorman – Rear Axle Shaft, Left or Right (Part No.630-105)

Rear Axle Shaft, Left or Right

from

$138.99
Axle shaft damaged or bearings worn out? This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:
  • Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models
  • Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications
  • Durable construction – designed to rigorous standards and tested to ensure performance
  • Trustworthy solution – backed by team of engineers and quality control specialists in the United States
See More

Yukon Gear – Ring Gear Bolt (Part No.33049)

Ring Gear Bolt

from

$6.99
Ring gear bolt for GM 7.5″, 7.6″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ & 8.6″ IRS. 7/16″ x 20.

Product Features:
  • Ring gear bolt for GM 7.5″, 7.625″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ and 8.6″ IRS
  • 7/16″ x 20
See More

Motive Gear – Differential Pinion Shim Kit (Part No.1113)

Differential Pinion Shim Kit

from

$15.99


Product Features:
  • PINION SHIM – DANA 44
See More

Yukon Gear – O-Ring For Toyota & Dana 44 Zip Locker Seal Housing (Part No.34004)

O-Ring For Toyota & Dana 44 Zip Locker Seal Housing

from

$11.29
Product Features:
  • O-ring for seal housing
  • Fits Dana Spicer 44 and Toyota 8″ and V6
See More

Motive Gear – Differential Carrier Gear Kit (Part No.GM12BI)

Differential Carrier Gear Kit

from

$163.99


Product Features:
  • GM 8 7/8″ OPEN INTERNAL KIT CAR & TRUCK
See More

Yukon Gear – Pinion Install Kit For GM 8.5" Front Differential (Part No.13070)

Pinion Install Kit For GM 8.5" Front Differential

from

$159.99
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, pinion nut, 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 GM 8.5″ front
  • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
See More

Powertrax – Grip LS Traction System (Part No.LS231230)

Grip LS Traction System

from

$480.99
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!
See More

Yukon Gear – Yoke For GM 12 Bolt Car & Truck, 1330 U/Joint Size (Part No.41152)

Yoke For GM 12 Bolt Car & Truck, 1330 U/Joint Size

from

$355.99
Yukon yoke for GM 12 bolt car & truck, 1330 u/joint size. 3.625″ snap ring span, 1.062″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:
  • Fits GM 12 bolt passenger car and truck
  • 30 spline
  • 1330 u-joint size
  • Outside snap ring design
  • 3.625″ snap ring span
  • 1.062″ cap diameter
  • U-bolt style
See More

Spectre – Differential Cover (Part No.6077)

Differential Cover

from

$54.99
Spectre’s 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 a gasket, this differential cover is designed to fit 1977-1991 Chevy/GMC Pickup/Suburban 1/2-3/4 ton four wheel drive front differentials. Includes 10 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your application requires metric bolts.

Product Features:
  • 10 bolt design cover
  • Includes gasket
  • Triple chrome plated for a lasting shine
  • 10 chrome 5/16 inch -18 x 3/4 inch differential cover bolts included
See More

Yukon Gear – Positraction Pinion Gear Thrust Washer With Step-Lip Inside For GM 12P And 12T – Fits New Eatons (Part No.33382)

Positraction Pinion Gear Thrust Washer With Step-Lip Inside For GM 12P And 12T - Fits New Eatons

from

$14.99
Positraction pinion gear thrust washer with step-lip inside for GM 12P and 12T. fits new Eatons.

Product Features:
  • Pinion gear thust washer for GM 12 bolt passenger car and truck
  • Fits positraction designs only
  • Has inside lip
See More

Pro-King – Differential Pinion Seal (Part No.743B070A)

Differential Pinion Seal

from

$23.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Yukon Gear – Pinion Nut Washer (Part No.33166)

Pinion Nut Washer

from

$21.99
Pinion nut washer for GM 12 bolt car & truck, 55-62 GM car & truck, GM 8.2″ & 63-79 Corvette.

Product Features:
  • Pinion nut washer for GM 12 bolt car and truck, 1955-1964 GM car and truck, GM 8.2″ and 1963-1979 Corvette.
See More

Yukon Gear – Positraction Clutch Guide (Part No.33352)

Positraction Clutch Guide

from

$8.99
Positraction clutch guide.

Product Features:
  • Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
  • Compatible with Dura Grip positractions only
See More

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

$21.99
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
See More

Motive Gear – Differential Crush Sleeve (Part No.3954482)

Differential Crush Sleeve

from

$5.49


Product Features:
  • CRUSH SLV 8 7/8 12BLT TRK
See More

Pro-King – Differential Internal Nest Kit (Part No.742J717)

Differential Internal Nest Kit

from

$219.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Felpro – DIFFERENTIAL GASKET (Part No.RDS 55075)

DIFFERENTIAL GASKET

from

$8.29
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
See More

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
See More

Yukon Gear – Standard Open Spider Gear Kit For GM 12 Bolt Car And Truck With 30 Spline Axles (Part No.16043)

Standard Open Spider Gear Kit For GM 12 Bolt Car And Truck With 30 Spline Axles

from

$207.99
Yukon standard open spider gear kit for GM 12P and 12T with 30 spline axles. 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 GM 12 bolt passenger car and truck open differential with 30 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
See More

Yukon Gear – Bearing Race Driver (Part No.56006)

Bearing Race Driver

from

$188.99
Bearing race driver for Dana 44 rear. (TK 31520) No return.

Product Features:
  • Bearing race driver
  • Fits 31520 race
  • All steel construction
See More

Yukon Gear – Replacement Pinion Nut For Dana 25, 27, 30, 36, 44, 53 & GM 7.75" (Part No.33143)

Replacement Pinion Nut For Dana 25, 27, 30, 36, 44, 53 & GM 7.75"

from

$6.99
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 t

Product Features:
  • Pinion nut for Dana Spicer 25, 27, 30, 44, 50 and GM 7.75″
  • 3/4″ x 16 thread
See More

Pro-King – Differential Case (Empty) (Part No.714A714A)

Differential Case (Empty)

from

$159.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
See More

Popular 1975 GMC K15 Differentials Categories

1975 GMC K15 Differentials

Maybe you’re in the middle of a full rebuild of that 1975 GMC K15. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 332 different Differentials in our inventory ranging from $0.91 to $1,969.99. That means you can find the exact parts or products you need to keep that 1975 GMC K15 running smoothly.

Differentials are only as good as their brand. We stock 12 different brands to make sure you have plenty of trusted parts to choose from for your 1975 GMC K15. Yukon Gear, Felpro, 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 GMC K15, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 180 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 5.0 stars and Differential Carrier Shim Kit with 2.7 stars.

So if you’re in the market for aftermarket Differentials to keep your 1975 GMC K15 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 GMC K15 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1975 GMC K15 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 K15 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Driveworks Differentials

We carry Driveworks parts in our stock across Differential Pinion Seals categories, plus more. For a 1975 GMC K15, our most popular Driveworks Differentials include:
Oil Seal
from $6.29
(1)
Oil Seal
Differential Pinion Seals

Top 1975 GMC K15 Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1975 GMC K15. Popular Felpro parts include:
Axle Housing Cover Gasket
from $6.49
(10)
Axle Housing Cover Gasket
Front Housing Cover Gaskets
DIFFERENTIAL GASKET
from $7.99
(3)
DIFFERENTIAL GASKET
Rear Differential Cover Gaskets

FAQs for 1975 GMC K15 Differentials

What are the most purchased Differentials for the 1975 GMC K15?

Out of 332 Differentials for the 1975 GMC K15, 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
Replacement Ring Gear Bolt For Model 35, Dana 25, 27, 30 & 44 - 3/8" X 24
from $11.99
This product is not rated
Replacement Ring Gear Bolt For Model 35, Dana 25, 27, 30 & 44 – 3/8" X 24
Differential Ring Gear Bolts
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
This product is not rated
Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt
Differential Cover Bolts

What are the top-rated 1975 GMC K15 Differentials?

Top-rated Differentials for your 1975 GMC K15 based on customer reviews/ratings are:
Differential Ring And Pinion
from $350.99
(7)
Differential Ring And Pinion
“Great spark plugs.”
Differential Carrier Shim Kit
from $8.49
(3)
Differential Carrier Shim Kit
“worked great”
Multi Purpose Seal
from $12.29
(2)
Multi Purpose Seal
“Front seal. Old one was leaking”