USA standard Ring & Pinion gear set for GM 8.5″ in a 3.73 ratio. USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing.
- Fits GM 8.5″ and 8.6″
- 8.50″ ring gear diameter
- 30 spline pinion
- 10 ring gear bolts
- 3.73 ratio
