another rear end question

[shenronzero]

hey everyone,

I have a 1988 supra with a A/T and I lucked out on getting a R154 5 speed that im going to swap into it. I want to get a 5 speed rear end to, to match up with the new transmission. I know there are two types of LSD's the 87-88 3.91 and the 89-92 3.73. My question is will the 3.73 bolt right in without any problems. a relative of mine who was a mechanic back in the day said he couldnt remeber exactly but the rear end may be a different size and the tow arm may not match up.

thanks for the help

 

[CRE]

All of the MA70 diffs swap straight across. The only thing you need to change is the speedometer drive gear in the transmission (well, there's a little bit more to it than that if you want the speedo/odo dead on, but swapping the drive gear is usually enough for most people).