This is a genuine Dana/Spicer Trac Lok limited slip differential for the Super 70 rear axle found in many 2001-2010 Ford E350 and E450 series vans. This is compatible with both 3:73, 4:10, and 4:56 gear ratios. This kit includes both differential side bearings and a set of ring gear bolts.
with Dana 70 Axle;with 35 Spline Teeth;Case Split 4.56 And Down;with Trac Lok;