USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets. Product Features:Fits 1985 - 1992 Ford 10.2510.25 ring gear diameter31 spline pinionFits 2008-2010 Ford 10.5 housing with OEM ring and pinion set12 ring gear bolts4.11 ratio
