Rear end advice for racing with a 4 speed

Illahe said
I believe you have a good point about hardening the axle after re-splining them. I’ve never understood the concept of these cut to fit axles that are sold on the Internet.

My guess is that you will need an abrasive blade chop saw to cut em down, cause they have to be hard. A hacksaw or band saw ain't gonna get it done.