just like the title says i need a posi rear end for my 88 gta

You might consider posting the TGO's classifieds, which will no doubt get you better responses.

JamesC

will do, thanks james

What power level? Do you want a OEM rear end or after market? The original rear ends were the 7.5 10 bolt and the Borg Warner 9 bolt. Neither one is a great rear end and will not hold up to large amounts of power. If you only have 350 HP then one if these would probably be all right for most use. If you have much more than that then you need to look at a Moser 12 bolt or something similar.

mine is a stock 305 tpi, just looking for an oem diff basically

ttt