That was a much better post! All you need now is more punctuation
(More enters make a post way easier to read!)...
The above quote was/is wrong, I meant to say
To put an RA65 lsd into an SA63 you need the diff sub frames, the rear section of the tailshaft, and I suspect the side driveshafts...
This is because as you have said the SA63 celica has the T series IRS (independent rear suspension) diff, and it is smaller and slightly different in mounting to the F series ISR (i.e. RA65 diff).
The SA63 diff is held in above with 3 bolts (and some on the sides too), as opposed to the RA65 which has 4 bolts holding it in from above. The section that it bolts into is different as a result of this so to put the RA65 diff into the SA63 you need that main xmember.
The T (SA63) series diff is actually a little shorter than the F series one (RA65), so as a result the SA63 tailsahft rear section is ~20mm longer to make up for this. So to put the F series diff into sa63 you need the ra65's shorter tailshaft
I also suspect the shafts that go off the side of the diffs are different
Cheers
Wilbo
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