1985 Chevy Blazer rear endI had 1953 model 3800 that I rebuilt a few years back. I went with a 1985 Chevy Blazer rear end. I had to weld on spring mounts and get a different u-join but it worked. I ended up with 4.10 gears. The old truck would top out at about 53 mph...can't imagine what it would have done with stock stump puller gears in it...
Just throwing out another option...
MikeC