I changed the front and rear end on my 62 Cutlass…It was back in 2006 and I had someone else to the work with the math involved w/a rack and pinion conversion etc..
I think the front end hubs are from a 60’s Camaro and the spindles had to be modified for disc brakes…
The rear end is just a modified Monte Carlo…
I spent $$ on mine and did more of a modification than most people want to do..
Hope that helps,
Jim