At almost 300K miles, the Corp. 10 in my car is singing its swan song. I’m going to try and make it a little longer, but it’s time to start planning what I’m going to do after. Ideally, I’d just keep the current axle since it has the control arm ears and the spring perches. As it stands, it’s a 2.56 ratio, 28 spline (I think) and open. The ratio doesn’t bother me as much because it has good highway manners, but the lack of positraction sucks. In a perfect world, I’d get a 9C1 8.5” that already has 3.23 gears and the Eaton G80. Not the gold standard in limited slip but okay for what I do/need. People want too much for the whole setup, and they don’t seem to be very available. Realistically, it seems like I’ll have to get a MotiveGear master kit for the 7.5”, $260, a posi setup, expensive, and then send it all to the builder. I’ll be $6-700 in the whole before labor, which seems unreal to me. If anyone can recommend a good posi unit, aside from Eaton, for the 7.5”, I would appreciate it. I’ve seen several brands that ring a bell, but I don’t know their quality. Also, if anyone has any suggestions or leads on a compatible 8.5” or even a 12 Bolt, I’m open to any input. I’m assuming a 12 would be from an old Bel Air, Biscayne, Caprice, etc., and then my only options on the 8.5” are a 9C1 Caprice or a hot G Body. Maybe an F Body? I’m better than I used to be, but I don’t pretend to be an expert on these enigmatic pumpkins.