Rear end set up

There has got to be some guys on here putting some serious power down, I have a 1991 Caprice wagon. I have a 530 hp 383 strokes motor with a built 350 trans for transferring that power.

My issue is now rear end, i currently have a clutch posi out of an ss impala in but couldn’t contain the power and is ready to grenade. I want to install a c clip eliminator kit as well as an eaton tru trac with chromeolly axles.

After talking to Baer axles out of Ontario he has never dealt with our style of rear ends and cant make a c clip eliminator for our housings because of bolt placement holding on the flange to the tube


Has anyone built a c clipped rear end for these cars or am i going to have to look for a replacement complete housing like an aftermarket 9 inch or something

Thanks for help in advance hopefully one of you have a solution for me

Moser makes axles for these cars. Can't speak to C-clip eliminators, but talk to them and they can set you straight. They make them, but Summit specifically says they don't fit Impala (or us, in this case, most likely):

https://www.summitracing.com/parts/msr-9200?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-moser-engineering&gclid=CjwKCAjwwtTmBRBqEiwA-b6c_3YowFYbYhI_kX2MrewuK2cb_3sa1yXBQ5ZCF-6Ry1NT6sjXT4q30xoC7CEQAvD_BwE


But I'm sure they could come up with a solution for you.

I quite like my TruTrac, too, if it helps. FYI wagons have 30 spline axles.

I looked into the C-clip eliminators, and Moser stated that they were not recommended for street use. They were designed for drag use only. The bearing retainers are made of aluminum and they say that they will not take the abuse of cornering.

With that said, you can probably use them, but you need to inspect them on a frequent basis. If you can find an axle housing with full floating axles, you can get away from the C-clips. I believe the Ford 9 inch does not have C-clips, and with your HP it would not be a bad investment. Moser makes complete aftermarket Ford axles.

Are the C clips really that much of a liability at your power level? I think Impala SS owners have run the stock rear end behind a lot more than 530hp and automatics.

Dylinblackmore - Sounds like you have a powerful setup there. Did you fail an 8.5" 10 bolt in your current setup? What tells you that it's failed? What was the history before you got it?

Here's a "bolt in" Ford 9" option if that's what you're looking for.
http://www.spohn.net/shop/1978-1996-GM-B-Body/Driveshafts-U-Joints/Moser-Engineering-Ford-9-Rear-End.html

I'm considering a commercial chassis rear end (9.5" GM 12/14 bolt), but still trying to figure out what the flange to flange and lower control arm mounting dimensions are on this unit to see how easily (or not) it will swap into my wagon.

My opinion is that most driveline/axle failures happen due to shock load - hard drag strip launches, sudden traction changes, etc. If it's just the power/torque the engine can produce, you'll rarely break anything - you're either traction limited (low gears) or power limited (high gears) well below the mechanical limits of the physical components. All assuming that it was properly assembled, setup, clean, full of the right fluids, etc.