I could only get 50-100 runs on a set of street gears, had to pull axles and check ring gear teeth a couple times a year. That will get you by while you save for a Dana, I put a pro gear in my 8-3/4 in 1997 and it's holding up fine. Pro gears are hard to find nowadays, tho.

I've broken plenty of 8.75 ring gears but since I went to the aluminum carrier and the pro gear I haven't broken anything. I'm going to put a new pro gear in before the new stroker engine goes in though.

They say once you brake a gear set to replace the center section as they have gone weak and are starting to twist.
Seems many go out and brake another set or two right away and replacing the center section fixes that.
http://chucker54.stores.yahoo.net/casehousings.html

I don't even see ONE billet cap in this thread?!?!


Do you guys just run a stock 8 3/4 rear with a gearset?

If you are talking to me? yes that was how it was set up when i bought the car. I never thought this car would brake the gears like it it. because my old 65 plymouth had a 742 case and 4.30 gears and i dont know how many passes it had on it. the 65 weighed 3500 pounds with me in it and would run 1.41 60 ft running 10.50 at 127-128. it never broke on me. but i did end up putting a dana under the 65 just in csae something like this happend. but the 8-3/4 gear set up is still kicking in my buddys 64 dodge.

well i have all winter to decided what i am going to do. eather build a dana out of a truck or pm doctor diff and see what it would cost him to build me a rearend set up. I have a brand new set of 4.10 gears in the box i can use or a used but like new set of 4.56 gears i could use. I am thinking about putting the 4.10 or some 4.30 in it and play with it on the street untill i get the money saved up to build a dana for it.