Here is some info I found out about the syncro/non-syncro differences....
I also got the 205 front output 32 spline shaft today finally.
The diameter of the rear bearing is different between the 85' syncro model (round pattern on the trans adapter surface), and the 80' non syncro unit (figure 8 pattern on the trans adapter surface). This new 32 spline shaft takes the larger bearing housing (non syncro type, figure 8 style)
as others have mentioned before.
Here is a few differences I've noticed between the two front output-rear covers, as visible from the rear of the t/c on the outside:
Syncro type.................................... Non syncro type
Rear cover has oil passage to bearing... No oil passage to bearing
Rear cover bearing housing 2" dia......... Bearing housing 2-1/2" dia.
Rear cover all cast aluminum............... Cast housing w/steel brg plug
So tomorrow I'll be switching the front output shaft parts from the older, spare 205 I have, to the newer shaft, and try to get this thing put together finally. I'll post up some pics tomorrow for a better reference of the covers.
Shees' all this just for 2 more splines???
MOre info here @ post 461:
http://coloradok5.com/forums/showthread.php?t=261694&page=10