We ditched the Ford 9" when we finally realized that after the 4th attempt, ford 9"'s are overated. So I bought a Dana 44 that bolted right up. Had it re geared to 3.73. But apparently when they regeared it, they didn't pack the pinion bearing properly. So I'm having it all redone, and should have it back next weekish...new bearings (not repacks), new shims with a new pattern run...we shall see...