Includes a 2-year warranty against ring and pinion failure!

This is a complete full floater assembly ready to run. Includes Mark Williams 12" pitch diameter ring and pinion with 40-spline pinion shaft ~ Custom gear ratios now available! ~, ball bearing pinion support, 40-spline forged steel yoke, computer pickup assembly with two magnets, 40-spline aluminum spool, 7075 aluminum 4-link brackets, floater spindles, end bells, lightened steel brakes, and MW floater axles. Based on 9" Ford modular dimensions (16" housing width), the 12" can be a easy upgrade for cars currently running 9" modular housing.

** Note ** Image shows optional carbon / carbon brakes (P/N 90775)

There are many items that can be interchanged to get your specific wheel to wheel width (from 33" to 36" and 38" to 42") and / or 4-link center dimension (18", 19", or 21"): Inner 4 link brackets, outer 4 link brackets, spacers, and end bells. To order, please collect your dimensions(4-link center, wheel-to-wheel, and bolt pattern), then call 1-866-508-6394 or contact us to place your order.