67' C20 manual to auto trans, Turbo 400 conversion, drive shaft length??

[396C-10]

Originally Posted by 396C-10

I have done this last month. Just know, your yokes will probably different on the T-400 transmission than the end of the drive shaft. You can use crossover U-joints. "While it can be done, using crossover U-joints is not suggested as a long-term solution. The smaller size basically becomes a fuse, and it will eventually fail." Is what I am finding.
Be prepared to replace the yoke on either the transmission or the drive shaft.
Mine is a 67' which had 3 on the tree. I went with a 396BBC / T-400 automatic. This is what I ran into. Hope it helps!!

This is where I am at. The yoke is different than the shaft. Any idea on a part number on that particular cross-over u-joint or will they know what I am talking about?