OK here's the end all post. This "get it and get this output flanges and then do this and while you're at it go to Mexico stuff" is too crazy do this.
1. Buy the diff
2.Go to Autozone and tell them you need like 92 J30 Axles (~175-200 I think)
3. Install the diff and the axles (it all bolts right up...I know b\c I did it to mine).
4.Take your old axles back to Autozone as the core. They knowingly knew it came from another car and said they would take them and give me the full amount.
EDIT: ADDENDUM: As far as the NA vs TT Diff, I was under the impression they were the same "size". If you think about it, they would be. Why would they make two subframes between the two cars. They wouldn't. What is different is the gearing. The NA is same as the 240 final drive, where as the TT is a little higher (quicker acel, but lower top speed) but not by much.
I used a 91 300z ABS Diff
with a 95 240 non-abs
and 93 J30 Axles.
Oh if you go this route call up courtesy nissan (
www.courtesyparts.com) and tell them you need the diff to axles bolts (10 of them) for a Z32 (300ZX) as the the non-lsd bolts are a 6 bolt pattern (thus smaller) on a 240 and wont lock the new axle-diff joint down securely. I had to put in temporary bolts and it clunked until I got the actual bolts in there.
My total install cost was:
Z32 Diff $60
J30 Axles ~200
Z32 Bolts ~10
Total ~275 :jumpjoy
:Family Guy Voice: Alright!