Posi Traction Differential for GM 8.500 in. 10-Bolt [30-Spline]

Vehicle Info Needed

JEGSPART NUMBER: 555-62808

Posi Traction Differential for GM 8.500 in. 10-Bolt [30-Spline]

Name: Posi Traction Differential for GM 8.500 in. 10-Bolt [30-Spline]
Brand: JEGS
SKU: 555-62808
Price: 641.99 USD
Availability: OutOfStock

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GM 8.5"

Posi Traction Differential

GM 8.500 in.

10-Bolt

30-Spline

2.73+ Gear Ratio

4-Spring, Clutch Style

Fully Rebuildable

Includes Exclusive JEGS Yellow Spring Pack

JEGS 555-62808 Posi Traction Differential Features:

Fits GM 8.5 in. diameter, 10-bolt ring gear differentials with 30-spline rear axles
Specifications: fits 2.73 or numerically higher gear ratio
Fully rebuildable and assembled with state-of-the-art technology and real-world testing for superior control on the road
Combines an exclusive JEGS yellow 4-spring pack and Raybestos composite clutches for better traction and more controlled power transfer
Made with high-quality components

JEGS 555-62808 Posi Traction Differential Notes:

Vehicles prior to 1999 require the use of carrier bearings 555-60681 (2.89 in. Race O.D.)
Vehicles 1999 and newer require the use of carrier bearings 873-D1582 or 718-SB12 (3.06 in. Race O.D.)
Fits GM 8.5 in. diameter, 10-bolt ring gear differentials with 30-spline rear axles

Technical Note: JEGS recommends the use of high-grade Non-Synthetic GL-5 gear oil 639-10043 and LSD (Limited-Slip Differential) additive 555-60120 for smooth operation and long life. The use of Synthetic oil is not recommended and may result in noisy or aggressive operation.

JEGS 62808 Posi Traction Differential Kit

FAQ

Is Posi traction worth it?

Yes, Posi traction is worth it for enhanced traction and stability, especially during high-performance driving. It improves power distribution to both rear wheels, optimizing control.

Can you convert a rear end to posi?

Absolutely. The JEGS 62808 posi traction differential kit provides an effective solution for converting your rear end to posi traction. It's a straightforward upgrade for improved performance.

What did the 8.5 10-bolt come in?

The 8.5 10-bolt is commonly found in various GM vehicles, including Chevy and Pontiac models. Check your vehicle specifications to ensure compatibility with the JEGS 62808 posi traction differential kit.

Is Posi traction the same as limited slip?

Yes, Posi traction and limited slip refer to the same concept—a differential that limits wheel spin. The JEGS 62808 posi traction differential kit ensures both wheels receive power for improved traction and stability.

Improve Traction for Your Front or Rear Differential

JEGS Posi Traction Limited-Slip Differentials combine an Exclusive JEGS Yellow 4-Spring Pack and Raybestos composite clutches for better traction and more controlled power transfer. The precision engineered internal gears are cut from forged SAE 4320 steel to provide stronger teeth, longevity and a smoother ride. These fully rebuildable units are assembled in the USA with state-of-the-art technology and real-world testing for superior control on the road.

Boost your vehicle’s traction, handling, and off-the-line performance with JEGS Posi Traction Differentials—engineered for drivers who demand more control in high-torque, high-performance conditions. Whether you're tackling the drag strip, curving back roads, or rugged off-road terrain, this upgrade delivers the confidence and grip you need.

Designed to distribute torque evenly between both rear wheels, this posi traction differential kit helps reduce wheel spin and maximize power delivery, especially when traction is limited. Say goodbye to one-wheel burnouts and hello to smoother, more predictable acceleration—even in wet or uneven conditions.

Built with premium materials and precision engineering, JEGS Posi Traction Differentials are made for durability under pressure. They’re an excellent choice for performance builds, street machines, muscle cars, or daily drivers in need of a traction upgrade. Installation is straightforward with no major modifications required for most common axle housings.

If you're looking for a reliable positraction solution to enhance your driving experience, JEGS has you covered. This differential improves cornering stability, enhances straight-line traction, and adds a performance edge that’s noticeable the moment you hit the throttle.

Whether you're upgrading your muscle car or outfitting your off-road rig, a posi track rear end setup from JEGS gives you the grip and confidence to take on any road—or lack thereof.

Dominate the pavement or the trail with JEGS Posi Traction Differentials—performance you can feel, quality you can trust. Order today and experience the power of true traction.

Part TypeDifferential Carrier

Product LineJEGS Posi Traction Differentials

BrandJEGS

Package Height10.2

Package Width10.7

Package Length10.8

Weight22.35 PG

Part CategoryPerformance Parts

Carrier Bearings IncludedNo

Aftermarket Carrier StyleLimited slip

Vehicle MakeGM

Cover Bolts10