Yukon Gear - ZP FSF9-35
USA standard spool for Ford 9", 35 spline
9" FORD 35Spline SPOOL 30deg (EXCL M.WLMS) 2-3/16" DECK , 2" Journal .
Installing a quality USA Standard Gear spool is a cost-effective way to get 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard Gear spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.
