Description
Upgrading to a 3.73 ring and pinion set transforms your GM 8.5-inch differential’s acceleration and responsiveness, delivering quicker off-the-line performance without sacrificing highway cruising capability. Whether you’re building a street machine or track-focused platform, this ratio strikes the ideal balance between drivability and performance gains. A complete kit installation means you get everything needed for a proper gear swap—no sourcing parts separately or worrying about mismatched components.
- 3.73 gear ratio
- 30-spline pinion
- GM 8.5-inch differential
- 10-bolt housing compatible
- Complete ring & pinion kit
- High-performance cut
- OEM-quality construction
