i am going to rebuild the 7.5 in my 86 montecarlo. I know everyone says don’t waste the money but I am going to try and do it on the cheap then sell it later on. I am actually going to build two rears and sell both. I have the rear in my car now which has 26 spline axles and a 3.73 gear. I have a posi for it from a late 80 early 90 trans am. I am thinking put the posi in and sale it later. I have another housing and torsion posi from a newer camaro that is 28 spline so I was going to go with it and new moser axles and a ring gear kit maybe summit brand. Thoughts?