Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededHURSTPART NUMBER: 530-02-128
3.73 Ratio Ring and Pinion for 1963-1991 Chevy C/K, R/V & GMC C/K, R/V Trucks w/GM 12-Bolt Rear Axle
$41595
Ships on 10/14/2026
Lowest Price GuaranteeRing and Pinion Gear Set1963-1991 Chevy & GMC C/K, R/V, Blazer, Jimmy, Suburban GM 12-Bolt Truck 8.875 in. Rear Axle 3.73 Gear Ratio Steel Set of 2
Changing the ring and pinion is the most direct way to correct the final drive ratio in a GM 12-bolt truck rear end (8.875 in. ring gear) after a tire size, engine or transmission change. This Hurst Engineering 3.73 ratio set suits quicker acceleration and towing with larger tires in 1963-1991 Chevy and GMC C/K and R/V trucks, and the gear teeth are finished to reduce friction and heat for longer gear life.
Hurst 02-128 Ring and Pinion Features:
- 3.73 gear ratio
- Fits GM 12-bolt truck differentials (8.875 in. ring gear)
- Made from high grade steel
- Gear tooth finish reduces friction and heat
- Professional setup is recommended; an installation kit with bearings, shims and seals is sold separately
Part TypeDifferential Gear Set
BrandHURST
Package Height6.0
Package Width12.0
Package Length16.0
Weight14.6 PG
Part CategoryPerformance Parts
Ring Gear Diameter8.875 in.
PositionRear
Ring And Pinion Ratio3.73
Axle TypeGM 12-Bolt Truck
Quantity2
Gear Ratio3.73
Part FitmentDirect Fit
Gear MaterialSteel
Vendor Part Number02-128
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
