It was pointed out to me that I'm getting vehicles mixed up here. The T-19 input swap/bearing retainer info I mentioned was CJ-specific.

I have an 80's J-20 T-18/208 available, but I always assumed it was a 6.32:1. IFSJA's data suggests that the 4:1 and the 6.32:1 versions existed simultaneously. I guess I'll just have to do some counting. Maybe it will be what he needs.