I have a 65 Barracuda with a slant 6 - three on the tree want some transmission/engine advice

cudamark said
Are you sure it was a 903? All the 3 speeds I've seen behind a 273 were the 745 model. Still not ideal, but, stronger than a 903. Every 903 I ever pulled (25-30) needed an input bearing, and all but 2 needed 1st gear too.....and these were all behind a S6.

Heck if I know. I was 16 back in the early 70's and transmission models didn't matter as long as it worked. It was a non synchro 3 speed in a 65.