USA Standard ZG GM11.5-488 Ring & Pinion for GM 11.5" - 4.88 Ratio

Dominate the mud and pavement when you purchase and install the USA Standard ZG GM11.5-456 Ring & Pinion for GM 11.5" - 4.56 Ratio. Engineered for performance, the Ring & Pinon is made to meet and exceed the specifications of the factory ring & pinon. The Ring & Pinion from USA Standard is constructed from quality materials and is backed by a 1 year warranty. USA Standard puts all their Ring & Pinons through an extensive series of tests and inspections to ensure they’re providing you with an elite Ring & Pinon that is built to always perform.