I want to change the back end of my 84 tbird to a posi trac. I am looking for a unit to put in. How do I identify that it is a posi unit.
Can anyone tell me what these part numbers are? E87W and the letters AB below that.
Thx
JrP
I am taking the 7.5 out of my 86' and putting in an 8.8 from another car into it. It is an aftermarket posi w/4.10's in the 7.5 now. Car would actualy chirp a bit if turned to fast because of the posi, if you are interested, let me know. I'm in Lebanon, Ohio 45036. Car is presently in Owensboro, Ky right now though.
if its a locker it will say something to the effect of 3l73. For 3.73 locker. I got one out of a turbo mark 7