E-Bodies.org Cuda Challenger Forum

Technical Shop => Wheels, Tires, Brakes, Suspension & Steering => Topic started by: nicka on February 18, 2021, 08:48:48 AM

Title: Rear Shock Mount Plate Threads
Post by: nicka on February 18, 2021, 08:48:48 AM
Noticed the threads are worn on one of the shock mount plate from my '71 Barracuda 8 3/4 rear.  I did a quick internet search and didn't find any vendors making original ones. I did find new ones, but they don't look anything like the originals.  Wondering if this if fixable?  I could cut/tap using threads from a u bolt? Is this piece pressed fit?  If so, maybe purchase a new one where the bolt/threads match?
Any thoughts?

Title: Re: Rear Shock Mount Plate Threads
Post by: anlauto on February 18, 2021, 08:55:56 AM
Do you have a welder, or someone that can weld for you ?
Sylvain makes reproductions of the complete stud that gets welded in.
https://www.ebay.ca/itm/CUDA-CHALLENGER-GTX-CHARGER-CORONET-REAR-AXLE-8-75-SHOCK-MOUNT-BRACKET-NEW-STUD/202568139884?hash=item2f2a00846c:g:jyEAAOSwm-FcP5yg  That's CDN dollars :alan2cents:

You're almost better off just locating another plate, they are not that hard to find.
Title: Re: Rear Shock Mount Plate Threads
Post by: 7212Mopar on February 18, 2021, 08:41:56 PM
One of my plate got stripped thread. I removed all the rust and wire wheel it clean good then welded the threads up good. Then I slowly file back to a rough diameter and then cut the threads back. I use the longer spring U bolt nuts for mounting the shocks for added safety. So far working fine and no problem at all.
Title: Re: Rear Shock Mount Plate Threads
Post by: nicka on February 19, 2021, 06:37:34 AM
Cool.  We have options.  I think I'll try and repair.  I've got a Miller 211.  If I'm not happy with the results, I'll either order a new stud or wait for Carlisle.

Thanks all.

Title: Re: Rear Shock Mount Plate Threads
Post by: gzig5 on February 19, 2021, 06:48:10 AM
The stud on one of mine was broken when I got the car.  Shock was loosely held on by a 3/8" bolt and bunch of washers.  :Thud:
I bored out the remnants, turned a new pin on the lathe, and welded it in.  Works perfectly and I'm quite pleased with the results. You can sometimes find original plates for sale in good shape but it isn't a hard fix if you like to do that sort of thing.
Title: Re: Rear Shock Mount Plate Threads
Post by: RUNCHARGER on February 19, 2021, 07:33:11 AM
The nut pretty much just holds the shock in place, not much force on it. I would buck the stud off at the end and weld a new bolt head on and then buck off the hex and non threaded part of the bolt. Grind the stud and bolt to almost a point where you mate them before welding.
Title: Re: Rear Shock Mount Plate Threads
Post by: oldmoparbuff on February 23, 2021, 10:03:11 AM
I repaired mine by cutting and welding a Doorman replacement shock stud to the mount.
Doorman P/N 31001.


Title: Re: Rear Shock Mount Plate Threads
Post by: Cudajason on February 23, 2021, 11:49:15 AM
these are not cheap, but they are an option.

http://www.firmfeel.com/e_body_mopar_shock_plates.html
Title: Re: Rear Shock Mount Plate Threads
Post by: Skdmark on February 23, 2021, 02:13:42 PM
 :ebay:

$100 for a pair
https://www.ebay.com/itm/A-body-B-body-E-body-shock-plates-8-75-or-Dana/254822217816?hash=item3b54967858:g:a-0AAOSwvJ9ftxcW
Title: Re: Rear Shock Mount Plate Threads
Post by: oldmoparbuff on November 19, 2021, 11:10:26 AM
Anyone runs across this thread in the future here is another option.

https://www.manciniracing.com/mopr1856346a.html

$129.99/set authentically licensed restoration product to boot.