What is the main benefit of a limited slip differential like the Yukon Dura Grip?

A limited slip differential, or 'posi,' helps send power to both rear wheels, improving traction especially when one wheel might lose grip. This means smoother acceleration and better control in varied driving conditions compared to an open differential.

What gear ratios is this Yukon Dura Grip differential compatible with?

This specific Dura Grip differential is designed to work with 3.31 gear ratios and any numerically higher ratios. It is not intended for use with numerically lower gear ratios.

Can this differential be rebuilt if needed?

Yes, the Yukon Dura Grip is designed to be fully rebuildable. This means that if wear occurs over time, the internal components can be replaced to restore its performance, extending its service life.

Yukon Gear Duragrip Posi For 8.2in Buicks / Olds & Pontiac w/ 28 Spline Axles

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Specifications

Brand: Yukon Gear & Axle
Part #: YDGGM8.2BOP-3-28-1
UPC: 883584260240

Yukon Gear Duragrip Posi For 8.2in Buicks / Olds & Pontiac w/ 28 Spline Axles

Name: Yukon Gear Duragrip Posi For 8.2in Buicks / Olds & Pontiac w/ 28 Spline Axles
Brand: Yukon Gear & Axle
Price: 1029.89 USD
Availability: InStock

$1029.89

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Yukon Gear Duragrip Posi for 8.2in GM 28 spline axles. Provides smooth, aggressive traction for a wide range of vehicles.

Key Features

Fits 8.2 inch GM rear ends with 28 spline axles and 3.31 or numerically higher gear ratios.
Yukon Dura Grip is a positraction limited slip differential that offers smooth yet aggressive traction.
Constructed with a high strength nodular case for a solid foundation.
Features forged 4320 chromoly spider gears for ultimate durability.
Includes composite clutches for effective limited-slip action.
Gears are cut to provide the strongest teeth possible.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're working on a classic Buick, Oldsmobile, or Pontiac with the 8.2-inch rear end and 28-spline axles, this Yukon Gear Dura Grip positraction differential is a solid choice. It's designed to give you smooth, yet aggressive traction, which is exactly what you need whether you're cruising down the highway or tackling varied terrain. This unit is built to handle the demands of performance driving while keeping things manageable for everyday use.

What sets this Dura Grip apart is its robust construction. It features a high-strength nodular case, which is a strong foundation for the internal components. Inside, you'll find forged 4320 chromoly spider gears, known for their exceptional durability, and composite clutches that work together to provide that limited-slip action. The gears are cut to ensure the strongest possible teeth, a detail that matters when you're putting power down. Plus, it's fully rebuildable, meaning you can service it down the road, and it's proudly assembled in the USA.

This differential is designed to work with 3.31 gear ratios and numerically higher ones. It's a direct fit for a range of vehicles including the Buick Electra and Skylark, Oldsmobile Cutlass and 442, and various Pontiac models like the GTO, Firebird, and Catalina, among others from the mid-60s to early-70s. Make sure to check the full fitment list to confirm it matches your specific application.