Rear Left Frame Rail: Repair of Replace

nicka · February 15, 2020, 09:26:29 AM

Working on the back half of a '71 Barracuda and the Rear Left Frame Rail has got some rust. Repair of replace?

b5cuda · February 15, 2020, 09:31:48 AM

I replaced that end section (not the whole frame rail) on my car and it wasn't as bad as yours.

RUNCHARGER · February 15, 2020, 09:46:50 AM

I would just do the end section if the rest of the rail is truly rust free. Any question on the rest of it though and I would replace it complete.

nicka · February 15, 2020, 10:35:40 AM

Followed the rear left frame rail and forwards the front and theres a section that either needs to be fixed or the whole rail needs to be replaced.

RUNCHARGER · February 15, 2020, 10:45:15 AM

It's quite a bit more work now but I would replace the complete rail.

kathyscuda · February 15, 2020, 12:33:13 PM

no way ,, they sell the 2 foot section. cut what you need.

6bblgt · February 15, 2020, 12:41:04 PM

Quote from: RUNCHARGER on February 15, 2020, 10:45:15 AM
It's quite a bit more work now but I would replace the complete rail.

both ends need replaced - not going to be a whole lot left in the middle - do it all in one piece

RUNCHARGER · February 15, 2020, 01:38:54 PM

If you fix the front and you fix the rear it will be more work than just changing the whole rail at once. You'll also have twice the chance of screwing it up.

7E-Bodies · February 15, 2020, 05:30:16 PM

For me, I'd replace. Do it once, do it right, then drive with confidence. I always wondered too, how much torque is applied to those since the leaf springs attach to it.

BFM_Cuda · February 15, 2020, 08:47:22 PM

I vote to replace it. You will have a stronger rail and it will take less time. You are going through a lot of work on this car, take the extra step and do it right the first time. You will be glad you did.

anlauto · February 16, 2020, 07:03:07 AM

Quote from: BFM_Cuda on February 15, 2020, 08:47:22 PM
I vote to replace it. You will have a stronger rail and it will take less time. You are going through a lot of work on this car, take the extra step and do it right the first time. You will be glad you did.

couldn't agree more..

JS29 · February 16, 2020, 10:25:17 AM

Another vote to replace.

nicka · March 03, 2020, 05:44:50 AM

On the Left Rear Frame Rail, what is this bolt hole used for?

Dmod1974 · March 03, 2020, 05:59:49 AM

Later years like mine mounted the rear seat belt buckle there instead of a bracket on the wheelhouse.

PLUM72 · March 03, 2020, 07:05:22 AM

How about this?
https://www.classicindustries.com/product/1970/plymouth/barracuda/parts/mm8128.html

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