Description
If you’re serious about acceleration and off-the-line performance, a 4.11 ring and pinion swap is one of the most effective modifications you can make to your GM 8.5-inch rearend. This aggressive ratio multiplies engine torque at the wheels, delivering noticeably quicker acceleration while maintaining drivability on the street or track. The YG GM8.5-411 kit delivers the precision and durability you need for high-performance driving, with quality CNC-cut gears built to handle sustained power.
- 4.11 gear ratio
- 30-spline pinion
- GM 10-bolt compatible
- 8.5″ / 8.6″ rearend
- Complete kit included
- High-performance rated
- Precision cut gears
- Professional installation recommended
