Description
A 3.73 ratio ring and pinion transforms your GM 10-bolt rear end into a responsive, torque-hungry powerhouse—ideal for street performance, track days, or drag racing where acceleration matters. This bolt-on kit delivers quicker off-the-line punch without sacrificing highway cruising, making it the go-to upgrade for drivers seeking tangible performance gains. Direct fit for GM 7.5in and 7.625in differentials, installation is straightforward with proper tools and technique.
- 3.73 gear ratio
- 27-spline pinion
- GM 10-bolt housing
- 7.5in / 7.625in compatible
- Complete ring and pinion kit
- Bolt-on installation
- Performance-oriented gearing








