Trenz

I have a 3.90 also if you're local.

R200 that have CLSD are from 300zxt(7/87-89) and its direct bolts on. The VLSD are the 300zx turbo SS which only made in 88 which the axles are a little different. J30 and q45 are a different story, that a lot of modification that is needed to be done.

$1500 is a little high. Light most people have said, if its include mods or rebuilt. I bought my drive train with BW T5, basically everything from the front of the engine to the rear end for that price. Engine had been rebuilt 35k ago. When I heard it before pulling it, sound great. Look on CL, ebay and here too for a deal.

It could be you differential mount. I know that have happen to me before. The bushing was all worn out.

I Agreed with John

That is cheap. I will bookmark this thread for future rebuilt. Thanks.