Description
If you’re running a GM 12-bolt and looking to maximize acceleration and off-the-line performance, a 3.73 ratio gear set is the sweet spot between highway drivability and track-ready responsiveness. This kit delivers the lower numerical ratio you need for quicker spool-up and stronger pulling power without sacrificing too much top-end cruising. Built with thick gears and 30-spline pinion construction, it’s engineered to handle sustained high-RPM abuse and forced-induction applications.
- 3.73 gear ratio
- 30-spline pinion
- Thick gear construction
- 8.875″ carrier
- GM 12-bolt housing
- 3-series design
- Complete kit format
- MPN: 49-0072-1









