pbcanney
Well-known member
I am part way through the conversion of my 81 from automatic to 4 speed. I got the 79 BW installed this weekend and have run into a bit of a snafu.
For reasons only Chevy would know, the 81 automatic uses smaller, lighter duty universal joints than the beefier manual trans Corvettes.
So after I installed the trans, and cross member, it's then that I realized the 81 driveshaft would not bolt up to the 79 front trans yoke.
So as I see it I have these choices:
For reasons only Chevy would know, the 81 automatic uses smaller, lighter duty universal joints than the beefier manual trans Corvettes.
So after I installed the trans, and cross member, it's then that I realized the 81 driveshaft would not bolt up to the 79 front trans yoke.
So as I see it I have these choices:
- replace the driveshaft with an earlier heavier duty manual trans version (as well as the differential yoke)
- have the front universal holder cut off and replaced with an appropriate larger one
- find a lighter duty front yoke that fits both the trans and the current drive shaft
- locate one single universal joint that's a mixed breed (te easiest solution, but does this half breed universal even exist?)
Also, when I went to remove the rear differential yoke from the input shaft of the differential, I found that a 1 1/16th socket is too small and a 1 1/8th is too big. wtf.. :confused
Its been a long day..... any response or advise at all would be helpful.