1970-2017 GM 8.5 Ring and Pinion 3.73 Ratio (YG GM8.5-373) auto-injection-pumps 63 inch 2-piece

63 inch 2-piece

keeping your vehicle warranty-friendly

this upgrade offers superior resistance to oxidation

By installing this product

1970-2017 GM 8.5 Ring and Pinion 3.73 Ratio (YG GM8.5-373) auto-injection-pumps 63 inch 2-pieceYukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state of the art design & testing processes, backed by 2 in house quality labs to ensure each item manufactured meets exacting specifications & quality standards. Yukon designed gear tooth surface finish reduces both friction & heat for long races & high torque conditions. We use high grade steel in both the ring & pinion, with fitment designed to OEM