Thats 100% a WER rearend.I had 65 galaxie with it. 10bolt cover,5x4 1/2 etc.. But it really must be changed twice since alle 65 up galaxies had coil springs.They were nearly all open 3.08s. Do'nt break the internals,as there is absolutly zero supply for the WER! I found out the hard way.. Ollie