1985 GMC S15 Differentials

Essential 1985 GMC S15 Differentials

Motive Gear – Differential Pinion Seal (Part No.2043)

Differential Pinion Seal

from

$3.49
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 o
See More

Yukon Gear – Differential Cover B (Part No.33569)

Differential Cover B

from

$5.99
Differential Cover B

Driveworks – Taper Bearing Cone (Part No.S-M-86649)

Taper Bearing Cone

from

$8.79
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Yukon Gear – Minor Install Kit For GM ’83-’97 7.2" IFS Differential (Part No.12048)

Minor Install Kit For GM '83-'97 7.2" IFS Differential

from

$36.99
Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

Product Features:
  • Fits GM 7.2″ IFS
  • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
See More

Powertrax – No-Slip Traction System (Part No.9207853005)

No-Slip Traction System

from

$544.99
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!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
  • See More

    Yukon Gear – Pinion Nut Washer (Part No.33167)

    Pinion Nut Washer

    from

    $14.99
    Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.5″, 8.6″ & 9.5″.

    Product Features:
    • Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.
    See More

    Yukon Gear – Dura Grip Case, GM 7.5 & 7.625", 3.23 & Up (Part No.20106)

    Dura Grip Case, GM 7.5 & 7.625", 3.23 & Up

    from

    $386.99
    GM 7.5″ & 7.6″ DURA GRIP case, bare, 3.23 & up, 26spline & 28spline.

    Product Features:
    • Dura Grip positraction carrier case
    • Does not include spider gears
    • Fits GM 7.5″ and 7.625″
    • 3.23 and up ratios only
    See More

    Yukon Gear – Bearing Race Driver (Part No.56022)

    Bearing Race Driver

    from

    $188.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M86610 race
    • All steel construction
    See More

    Motive Gear – Differential Pinion Nut (Part No.1260823)

    Differential Pinion Nut

    from

    $8.49
    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 o
    See More

    Motive Gear – Differential Mini Spool (Part No.MS7.5-26)

    Differential Mini Spool

    from

    $98.99
    Motive Gear Mini-Spools replace your stock spider and side gears with a solid billet mini-spool for 100% traction to both wheels. Not recommended for street applications.

    Product Features:
    • Billet construction
    • Not recommended for street applications
    • GM7.5″ MINI SPOOL 26 SPLINE
    See More

    Richmond Gear – RngPnnInstlKt (Part No.83-1044-B)

    RngPnnInstlKt

    from

    $43.99
    RngPnnInstlKt

    Yukon Gear – 7.2" Shifter Seal (Part No.30280)

    7.2" Shifter Seal

    from

    $24.99
    7.2″ shifter seal.Yukon Mighty seal.

    Product Features:
    • Shifter seal
    • Fits GM 7.2″ IFS
    See More

    National – Shaft Repair Sleeve (Part No.99225)

    Shaft Repair Sleeve

    from

    $28.99
    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

    Yukon Gear – Dura Grip Positraction For GM 7.5" & 7.625" With 26 Spline Axles, 3.23 & Up (Part No.26017)

    Dura Grip Positraction For GM 7.5" & 7.625" With 26 Spline Axles, 3.23 & Up

    from

    $882.99
    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 Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

    Product Features:
    • Fits GM 7.5″ and 7.625″ with 26 spline axles
    • 3.23 ratio and up only
    • 4-spring, clutch style positraction
    • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
    • Fully rebuildable
    • Assembled in the USA
    See More

    Yukon Gear – Cross Pin Bolt (Part No.33067)

    Cross Pin Bolt

    from

    $6.99
    Cross pin bolt for Chrysler 8.25″, 9.25″ rear, Ford 7.5″, 8.8″, GM 12 bolt car & truck, 7.2″ IFs, 7.5″, 7.6″, 8.0″, 8.25″ IFS & 8.5″.

    Product Features:
    • Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS
    See More

    National – Bearings (Part No.A-6)

    Bearings

    from

    $16.99
    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

    Yukon Gear – Posi Spring Kit For GM 7.5", With Preload Plates (Part No.33206)

    Posi Spring Kit For GM 7.5", With Preload Plates

    from

    $166.99
    Product Features:
    • Positraction spring kit
    • Fits GM 7.5″ and 7.625″ Dura Grip
    • Includes preload plates
    See More

    Dorman – Rear Differential Cover (Part No.697-701)

    Rear Differential Cover

    from

    $20.99
    This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

    Product Features:
    • Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
    • Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
    • Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
    • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
    See More

    Motive Gear – Differential Pinion Shim Kit (Part No.1104)

    Differential Pinion Shim Kit

    from

    $12.99


    Product Features:
    • KIT SHIM
    See More

    Yukon Gear – Mini Spool For GM 7.5" With 26 Spline Axles (Part No.32228)

    Mini Spool For GM 7.5" With 26 Spline Axles

    from

    $277.99
    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 GM 7.5″ with 26 spline axles
    • Provides 100% traction to both wheels at all times
    • Installs into standard open carrier case
    See More

    National – Shaft Repair Sleeve (Part No.99128)

    Shaft Repair Sleeve

    from

    $41.99
    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

    Yukon Gear – Standard Open Spider Gear Kit For Early 7.5" GM With 26 Spline Axles And Large Windows (Part No.16048)

    Standard Open Spider Gear Kit For Early 7.5" GM With 26 Spline Axles And Large Windows

    from

    $149.99
    Yukon standard open spider gear kit for early 7.5″ GM with 26 spline axles and large windows. 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 7.5″ open differential with 26 spline axles
    • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
    See More

    Pro-King – Differential Internal Nest Kit (Part No.741A717)

    Differential Internal Nest Kit

    from

    $184.99
    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

    Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

    Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

    from

    $148.99
    Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

    Product Features:
    • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
    See More

    Yukon Gear – 14 Plate Dura Grip Composite Clutches, GM 7.5 (Part No.16119)

    14 Plate Dura Grip Composite Clutches, GM 7.5

    from

    $202.99
    14 plate DURAGRIP COMPOSITE clutches, GM 7.5.

    Product Features:
    • Clutch kit
    • Fits GM 7.5″ and 7.625″ with Dura Grip positraction
    • Steel clutches
    See More

    Yukon Gear – Clutch Guide For GM 7.5" & 7.6" Dura Grip (Part No.33251)

    Clutch Guide For GM 7.5" & 7.6" Dura Grip

    from

    $10.99
    Product Features:
    • Clutch guide
    • Fits GM 7.5″ and 7.625″ Dura Grip
    See More

    Motive Gear – Axle Shaft (Part No.14035368)

    Axle Shaft

    from

    $143.99
    The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

    Product Features:
    • AXLE SHAFT 83-89 “S” SERIES 26 SPL. 4 X 4, 29″
    See More

    Pro-King – Rear Axle Shaft Kit (Part No.AXK-235)

    Rear Axle Shaft Kit

    from

    $221.99
    Pro-King is the leading supplier of transmission and driveline products in the aftermarket. All products are designed to meet or exceed OE quality, form, fit and funtion.

    Product Features:
    • High strength steel
    • Dual heat treating process
    See More

    1985 GMC S15 Differentials

    Maybe you’re in the middle of a full rebuild of that 1985 GMC S15. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 193 different Differentials in our inventory ranging from $2.49 to $2,219.99. That means you can find the exact parts or products you need to keep that 1985 GMC S15 running smoothly.

    Differentials are only as good as their brand. We stock 13 different brands to make sure you have plenty of trusted parts to choose from for your 1985 GMC S15. DriveWorks, National, and Felpro 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 1985 GMC S15, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 952 reviews in this category, some of the top rated parts include Rear Differential Cover with 4.5 stars and Multi Purpose Seal with 4.0 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1985 GMC S15 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 1985 GMC S15 Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1985 GMC S15 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 S15 the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular Felpro Differentials

    We carry Felpro parts in our stock across Rear Differential Cover Gaskets categories, plus more. For a 1985 GMC S15, our most popular Felpro Differentials include:
    DIFFERENTIAL GASKET
    from $7.99
    (45)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets

    Top 1985 GMC S15 Differentials from Driveworks

    Driveworks products are another trusted brand when it comes to Differentials for your 1985 GMC S15. Popular Driveworks parts include:
    Taper Bearing Set
    from $10.29
    (70)
    Taper Bearing Set
    Differential Bearings

    FAQs for 1985 GMC S15 Differentials

    What are the most purchased Differentials for the 1985 GMC S15?

    Out of 193 Differentials for the 1985 GMC S15, the most popular in our inventory are:
    Bearings
    from $16.99
    (25)
    Bearings
    Differential Bearings
    Bearings
    from $17.99
    (36)
    Bearings
    Differential Bearings
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    Differential Pinion Shaft Lock Bolts

    What are the top-rated 1985 GMC S15 Differentials?

    Top-rated Differentials for your 1985 GMC S15 based on customer reviews/ratings are:
    Rear Differential Cover
    from $20.99
    (38)
    Rear Differential Cover
    “Looks great, face lift for the rear differential. Old one was rusted & in bad shape. Just remember to get the correct size.”
    Multi Purpose Seal
    from $15.99
    (4)
    Multi Purpose Seal
    “Perfect”
    Bearings
    from $10.49
    (2)
    Bearings
    “Reasonable price and woks well. front diff 2006 Escalade esv”