Update: 89 80 trans drive flange replacemnt

George Selby gselby4x4 at earthlink.net
Fri Nov 12 03:47:38 EST 2004


OK, I used the bolt through the flange method of removing the stub shaft 
from the transmission, all 4 came out no problem (2 per 
trans.)  Unfortunately for me, they are not interchangeable, the one with 
the large CV bolt pattern is also 2-4 mm larger and thus the ones I need to 
put in are too small for the new transmission.  So I have a trans from a 5 
cyl 90, and my car is a 4 cyl 80.  Other than this the transmission goes in 
fine, I already have it in the car, starter and slave hooked up, and the 
gearshift goes through all the gears fine.

I did some research on the CV joints (inner and outer.)  I discovered the 
outers are the same between both cars, but the inners are different.  So I 
just need to find a way to put larger inner CVs on my shaft (option 1) or 
put in the whole shaft assemblies from a 2wd 90 (option 2.)  So the main 
question here is:  will a larger inner CV joint go onto the same shaft as 
the smaller CV.  I think the larger is a 100mm CV, and the smaller is a 90mm.

George Selby



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