

Limited Slip Differential for 1963-1991 Chevy C/K, R/V & GMC C/K, R/V Trucks w/GM 12-Bolt, 30 Spline, 2.76-3.42 Ratios
An open differential sends power to the tire with the least traction, which leaves a GM 12-bolt equipped truck spinning one wheel on loose ground or wet pavement. This Hurst Engineering limited slip differential uses composite clutch packs to split torque to both rear wheels in 1963-1991 Chevy and GMC C/K and R/V trucks, and it is sized for 2.76-3.42 gear ratios as well as 3.73 and up thick gears.
Hurst 02-124 Features:
- Fits GM 12-bolt truck rear axles with 30 spline axle shafts
- Designed for 2.76-3.42 gear ratios and 3.73 and up thick gears
- Composite clutch packs
- 4320 chromoly spider gears
- Use a high grade non-synthetic GL-5 gear oil with limited slip additive; synthetic oil is not recommended and may cause noisy or harsh operation
Maximize Traction and Control with Hurst Limited Slip Differentials – Built for Strength and Street Performance
Upgrade your drivetrain with Hurst Limited Slip Differentials, engineered to boost traction and eliminate annoying rear-end noise. Designed for street-friendly performance, these 4-spring, composite clutch-style units feature forged 4320 steel internals and reinforced gear teeth for lasting strength and reliability. Say goodbye to that worn-out open differential and experience smooth, confident handling with Hurst’s proven limited-slip technology.