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Cut the nut, or?

71SandbugCharger

71SandbugCharger

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I got the bolts on the front of the spring off easy enough, and the nut on the very rear started easily, and then won’t budge off. I got the top nut off. Cut it? Or?

thanks!

DB911360-AF94-46CB-B02B-7CD6CFA2FB21.jpeg
 
Do you have a torch or a Propane/Mapp gas cannister?
The guys in the Rust Belt deal with siezed fasteners like this quite often and HEAT is often the fix.
 
I use PB blast. Tighten it back up a little, spray it, wait and then loosen again. Keep working it back and forth and it will probably come off. If not, a little heat as @Kern Dog said. Are you going to reuse the shackles with new rubbers or replace them?
 
Thanks! I’m going new with shackles and rubber. Hopefully, I can use the springs because I don’t want to spend $500+ for new ones (classic ind prices).
 
If you are replacing the shackles, use the cutoff wheel. As far as the springs go, there are rebuild kits so rebuilding them and new bushings/shackles is a simple project. I'm sure there is someone nearby you can take the pieces to and have them blasted clean.
 
PB blaster, wait then heat and a good 1/2" impact.
Otherwise we just snap them off and move on.
 
Cutting the shackle at least gets things out of the way but you still have to deal with the top mounts. Plasma works awesome !!
 
I've had that happen. Just run the nut back on. Then wire brush the threads. oil it, and try again. And add heat if its still tight. Or cut it off, if replacing the shackles.
 
Pretty much a blinding flash of the obvious, bfo, but be mindful of gas fumes/leaks etc when you have any of the hot wrenches around[ torch, plasma etc] or are using a cut off wheel.
 
Start with a wire brush, clean off the grit,
Then penetrant
Then it should come off.

So now brake clean it off then wire brush it, then penetrant.

practice your skills on this don’t just cut it off.

someone will want to buy a good used shackle.
 
Parts on old cars can be compared to an old person with arthritis. You can't force things to happen, you need to work it back and forth otherwise its going to hurt. Finesse is the key. You don't always resort to brute force unless you know the item can be replaced easily enough.
 
It depends on what you are working on.
A classic Mopar gets a lot more patience than something like this where it's likely just gonna break anyway:
(Nice hood on this one though)
00k0k_g9dxxNx2Wog_0jm0ew_600x450.jpg
 
PB Blast did the trick! I’m going to tackle the u-bolts tomorrow night, then slide the shackles off the rear left!
Now, all are in the rust remover!

25E9BBA4-A59B-4958-AD6B-64AC6C42DC84.jpeg 85A1056A-98A2-40CD-96EF-2DE8F8F94756.jpeg
 
The u-bolts will likely be worse. Wire brush and soak. Out some then back in. It's a good workout with a bar.
 
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