Rebuilt rare 1964 3.89 ratio corvair diff this case is for the trans leaf new preminum bearings new seals reset ring & pinion manuel trans also have powerglide diff's.Picture is generic Please take the time to view our other listings.We also rebuild Corvair powerglides,4spd and 3spd transmissions Rebuilt Engines AUTOBOHN ENGINES THE PONTIAC CORVAIR VW GUYS!! 616-897-7679 8.00am-6.00pm ANY QUESTIONS EMAIL US YOUR NUMBER as we can't have ours in listing anymore sorry