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Thread: rear suspension removal -- in junkyard Reply to Thread
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Topic Review (Newest First)
12-05-2012 05:10 AM
whynotthinkwhynot I put a jack under the spring, You might be able to insert a spring compressor in there. I don't have the same suspension design on the wagon, so I don't know. There was an old style (rwd) coil spring compressor that fits in the hole in the center of the spring, then you swing the arms out to grab the spring, and clamp down on it. IIRC. people have had issues using that tool, but I haven't tried it myself.

What I meant by mitigating the leftover spring tension was by having an assistant use a long 2x4 under the control blade or spring seat to put pressure on it, so that when you loosen the bolt it won't jump off there. There will still be about 50-100 psi left on the spring. Someone with a 2x4 should be able to prevent it from separating violently. If you can't do that, then you should at least wrap a rope around the spring and the control arm, and tie those up somewhere on the body to limit movement.

IMO, it's going to be hard to remove the control arm bolt without something taking tension off the spring. Those things tend to bind up. If you can, use a spring compressor, remove the spring, then remove the control arm.
12-05-2012 03:28 AM
finalfantasy ^^^no problem, look at my post time.

thanks for the info, wondering how much spring tension we are talking. I have to sneak a bottle jack in to get the tension off the shock bolt in order to remove it (in addition to the swing arm) then I can let it down SLOWLY. I hate to have to pull it off with a bottle jack though?

I have a good electric impact gun and would like to stand far back behind the car or something?

I dont know how that spring might come out in case of emergency even with the suspension unloaded, should I put a compressor on it to be safe or something, what do all these guys do?
11-16-2012 04:58 AM
whynotthinkwhynot If the suspension is hanging, you're mostly ok. There will still be a little spring tension left, but you should be able to mitigate that. It would probably be helpful to loosening trailing arm bolts if you remove the spring first, but I'd think you'd get away without it. Just be prepared for parts to move when you disconnect something. It shouldn't be violent unless you have your hands, legs, or face in the wrong place.

Sorry, I read that wrong. Not enough coffee maybe, look at the post time. LOL
11-15-2012 05:28 PM
Tymes This method of of supporting cars in yards is basically the same as having 4 jack stands under the car, but with a much larger base. They generally have 1 rim horizontal and another vertical in the center to the other and then weld the 2 together. It lifts the cars body about 3 feet off the ground.
11-15-2012 11:08 AM
finalfantasy
Quote:
Originally Posted by whynotthinkwhynot View Post
You're trying to get a good trailing arm off of a rear with smashed drums? Um... ok.

You should be very careful. You're going to have to jack or put something under that vehicle's body before you go removing the suspension. Even if you just slide stuff under there, you'll have the 1000+psi spring that is still sprung under there waiting to apply pressure to anything suspension that you're trying to remove. For example. If you were able to get the front bolt out (which you can't because its in a bind), it would probably be likely to slam the control arm up.

If you didn't know this sort of stuff before you started, you should stop now. Seek some other way to get your part before you seriously injure yourself. It wasn't too long ago that some guy killed his 3 yr old daughter removing a leaf spring. Suspension stuff looks all peaceful, but screw with it the wrong way and it will make mushy meat out of you. Furthermore, how freaking wise is it to even try to remove suspension parts on a car that is held off the ground by the suspension? The bolts are in a bind, the car is waiting to fall, and the spring is waiting to be unsprung.
First of all, the car is NOT held up by suspension, i think i mentioned that in my first post. It is already held high off the ground by supports the jy puts there. They weld two rims at perpendicular together and place a few underneath the unibody -- not on the suspension. So knowing that, how much of the spring energy has been released?
11-15-2012 05:40 AM
whynotthinkwhynot You're trying to get a good trailing arm off of a rear with smashed drums? Um... ok.

You should be very careful. You're going to have to jack or put something under that vehicle's body before you go removing the suspension. Even if you just slide stuff under there, you'll have the 1000+psi spring that is still sprung under there waiting to apply pressure to anything suspension that you're trying to remove. For example. If you were able to get the front bolt out (which you can't because its in a bind), it would probably be likely to slam the control arm up.

If you didn't know this sort of stuff before you started, you should stop now. Seek some other way to get your part before you seriously injure yourself. It wasn't too long ago that some guy killed his 3 yr old daughter removing a leaf spring. Suspension stuff looks all peaceful, but screw with it the wrong way and it will make mushy meat out of you. Furthermore, how freaking wise is it to even try to remove suspension parts on a car that is held off the ground by the suspension? The bolts are in a bind, the car is waiting to fall, and the spring is waiting to be unsprung.
11-15-2012 04:27 AM
Tymes ^^ Yeah, the shock has to be unhooked to get the spring out.
11-15-2012 01:59 AM
finalfantasy
Quote:
Originally Posted by Tymes View Post
As for the springs, until you disconnect the control arm from the spring seat, it can't drop low enough to release the spring, regardless of the shock being there or not. But yes use a jack under the spring seat when you disconnect that bolt.
but you have to remove the shock too right or you cant get the coil out, right? they both limit, but the control arm more?
11-14-2012 09:51 PM
finalfantasy So can I get the brake drum/ hub off without needing an angle grinder to saw the arms in the yard? Basically I'm trying to go the cheapest route to get a straight rear end in there again. Drums are smashed and arms bent.
11-14-2012 09:44 PM
redSVT_03 Hate to break it to you but your best bet is to buy new control arms (Cheapest at rockauto.com). The bolts tend to seize up in the bushings, even if you cut the bolt heads off to remover the control arms there will still be the bolt sized in the metal bushing sleeve. Ive been there before with my own focus when I lowered it had to cut the old control arms off and replace them. and no they do not sell just the bushings, you have to buy new arms with them in it. good luck
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