Before I reinstall another TH400 transmission in My Scotsman I want to double check everything. One thought that occurred to me was that the cracked case took out the U joint instead of the reverse. I know the motor mounts both front and rear are very stiff compared to what I'm used to and wondered if I'm putting too much of a strain on the case supporting the weight of the Caddy at the factory tail shaft mount.
The factory Caddy mount was softer then the Chevy rear mount I'm using too.