While I have never owned a ford 9" rear end, summit sure shows a wealth of attractively priced components with gears going from 3.00 and up.
Probably referring to the D61 3.07 gear that came in some Ford trucks and all 1st Gen Cummins 3 spd equipped Rams. I think I've read that a D61 gear can be put in a 60 housing with a spacer? Or it might be the other way around, 60 gear in a 61 housing with a spacer
The other way around, the 61 will accept 60 r&p with a spacer from what I've read. In any event, I don't think anyone makes D61 gears at all.
