Description
If you’re building a high-revving early Mopar 8.75 rear end, the 3.91 ring and pinion gear set delivers the ideal balance of acceleration and top-end capability for street and strip applications. This ratio transforms throttle response without sacrificing highway cruising efficiency, making it a go-to choice for enthusiasts pushing their small-block or mid-size engine builds. Whether you’re tuning for bracket racing or daily-driven performance, a quality gear set is non-negotiable for reliable power transfer and longevity.
- 3.91 gear ratio
- 10 spline pinion
- 742 case housing
- Mopar 8.75 inch
- Complete kit
- Bolt-on installation
- Performance-grade materials
- Early Chrysler fitment
