housing year ?
The 57- early 60's housings are smaller, there night be a problem in those. I have a 9 3/8 Lincoln disc rear in one T project, and a early 60's 9 in another. I have a spare 9 with 3.50 gears that I thought I might want in the Lincoln case, The one with the 9 has a buick V6 5 speed and I wouldn't want the 2. 70 Lincoln 9 3/8 gears in it.