8 3/4 Evaluation guidance.

Thanks Guys. I knew that the rear has been a part. It's 4:11 gears and I knew at least the axles were swapped out to BBP. I'm an engineer and have a machine shop at my place. I've ridden motorcycles all my life (turning 60 next week) and do all of my own work, restorations etc. But I've learned over the years not to mess with things that aren't broke, and rears are something you have to get right, and I have never dug into one. I guess thats why I asked for imput. It sounds like pulling the axles and third member is the minimum I should do. Any details I should know from those with experience? Any thing not obvious I should look at or check?
Again thanks for the help!