Transmission & Drive line
My 85 has a 7.5 non posi rear end. The drive shaft length has been changed to fit the LS/4L60e setup. I was going to just upgrade the 7.5 to a 3.42 posi and let it go at that. I'm an old guy and won't be doing any racing/slicks/big tires and so on. Probably just go back with original equipment...