are all borg & warner parts inter changeable?i have a 2.77 9 bolt & have a partner that has a 3.23 disc brake rear end complete out of a 87-89 gta.my rear end is a 2.77 out of a 89 iroc,i am trying swap diffs & change gear ratio to 3.73 from precision gear.
both rear ends are posi.my question is will all parts be interchangeable? can any one help?
thanks
chuck

 

The posi carriers are different i believe from 2.77 to 3.08 & from 3.23 to 3.73 or numerically higher.If you only want to change the ring & pinion.Youll have to go with the 3.23 diff.Or change the entire carrier from your 2.77.Everything else should be the same.

 

all 9-bolt parts have to be used with 9-bolt parts, nothing from a 10bolt will work. the 3.23 is not a stock 9-bolt ratio... the stock 9-bolt ratios are 2.77 3.27 3.45.

 

crazychuck13, do you have any extra 9 bolt axle shafts? I'm looking for a drivers side axle shaft. Any info would be great.