Description
A 3.73 ring and pinion ratio is the sweet spot for street performance builds—delivering quicker acceleration off the line while maintaining reasonable highway cruising RPMs. This Excel gear set is engineered for the GM 12-bolt housing, one of the most popular differentials in the hot rod and performance community, offering the durability and precision you need for consistent, reliable power delivery. Whether you’re upgrading from a higher numerical ratio or building a new drivetrain, this kit gives you the direct engagement and responsiveness that transforms your vehicle’s launch characteristics.
- 3.73 gear ratio
- 30-spline pinion
- GM 12-bolt compatible
- 8.875 in diameter
- 3-series construction
- Complete ring & pinion kit
- Precision-cut teeth
- Bolt-on installation
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