Originally Posted by camarotale
I have run an 8.5 ten bolt in a 67 camaro with 600 hp and a 12 inch slick with a power trax locker and a 3000 stall about 350 eigth mile runs and never had a problem, saw a lot of proplems with the 8.2 rear end, the 8.5 is more durable then most give it credit for, the one thing your 8.5 wont take is a trans break if you are coming off the foot break where your drive train is loaded you will be fine.
I ran my 8.5 10-bolt with a just a mini spool and stock axles with 1.38 60' and had no issue's. I added the stronger stuff since then to be safe but the stock axles looked like new when I pulled them out. I think the biggest issue with it is weight. I was about 2750 then..