1990 GMC C2500 Engine Additives

Keep Your 1990 GMC C2500 in Top Shape with a Quality Engine Additive

When it comes to maintaining or upgrading your 1990 GMC C2500, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Engine Additive for your C2500. We currently carry a top Engine Additive in stock that is built to last. Whether you’re replacing a damaged Engine Additive or looking to upgrade, our selection for the 1990 GMC C2500 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Coolant/Antifreeze and Fluids to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1990 GMC C2500 running smoothly and looking great.

Essential 1990 GMC C2500 Engine Additives

Yukon Gear – Dura Grip Positraction For GM 9.5" With 33 Spline Axles (Part No.26025)

Dura Grip Positraction For GM 9.5" With 33 Spline Axles

from

$1025.00
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 9.5″
  • 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

Powertrax – Lock Right Locker (Part No.1910-LR)

Lock Right Locker

from

$376.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! 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

    Most Popular Posi Units and Component for 1990 GMC C2500s

    Enhance your 1990 GMC C2500 with this popular Posi Units and Component we have in stock, for $1,025.00.

    Yukon Gear – Dura Grip Positraction For GM 9.5" With 33 Spline Axles (Part No.26025)

    Dura Grip Positraction For GM 9.5" With 33 Spline Axles

    from

    $1025.00
    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 9.5″
    • 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

    FAQs for 1990 GMC C2500 Engine Additives

    What’s the price range for 1990 GMC C2500 Engine Additives?

    We currently have just one Engine Additives for the 1990 GMC C2500 in stock: Dura Grip Positraction For GM 9.5" With 33 Spline Axles and it costs $1,025.00.

    Does Advance Auto Parts sell Engine Additives for other GMC C2500 model years?

    Yes, we carry Engine Additives for 19 model years of GMC C2500s between 1979 and 2000. The following model years are the most popular for Engine Additive purchases: 1991, 1980, 1982, 2000, 1999, 1986, 1995, 1981, and 1997.

    Does Advance Auto Parts sell Engine Additives for any other 1990 GMC models?

    Yes. We stock Engine Additives for 11 other popular 1990 GMC models. Some of the most popular are 1990 Jimmy Engine Additives, 1990 K1500 Engine Additives, 1990 C1500 Engine Additives, 1990 K3500 Engine Additives, and 1990 Safari Engine Additives.

    What types of Engine Additives do you sell for my 1990 GMC C2500?

    We currently have just 1 Engine Additive in stock for a 1990 GMC C2500, and as of 11/2/25, it is a Posi Units and Component.

    Can I get help with 1990 GMC C2500 Engine Additive orders?

    Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Engine Additives and more.

    What is your return policy for GMC C2500 Engine Additives?

    Advance Auto Parts keeps returns simple. For new GMC C2500 Engine Additives and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.