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Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 9:38 am
by Rinkle_Stinkle
I'm looking to replace the body mounts and bushings. I have done one a while ago on a 90 YJ and that was pretty easy. I would imagine this will be a little more difficult.

Questions:
1. do I loosen them all first and use a jack to relieve pressure like on the YJ?

2. what are the hardest to reach areas and do I need any specialized tools for it?

3. is it worth me doing it over a shop? (id imagine that's a yes)

4. if I had a shop do it what do you think the labor cost would be?

5. if I do it, any recommendations on techniques or if you know of a video or thread please share the link as I'm a visual learner.

Thanx for the info!!!!! :fsj:

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 9:53 am
by tgreese
Why do you want to replace the bushings?

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 10:21 am
by SJTD
What year? When they went to the one less mount per side the access holes in the floor no longer lined up with the bolts so you can't get oil on the bolts.

The captive nuts were intended for assembly and won't hold if the threads are rusty.

If you want to proceed I'd drill a small hole above each bolt so you can get some Kroil or PB Blaster on them. You can spray the bolt heads from below all day but not much is going to get up to the threads.

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 10:26 am
by Rinkle_Stinkle
tgreese wrote:Why do you want to replace the bushings?

they are pretty old and dry rotting very badly. I'm doing a lot of work on it and once completed I would rather have addressed everything needed in the next ten years... I believe these won't last that long.

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 10:27 am
by Rinkle_Stinkle
SJTD wrote:What year? When they went to the one less mount per side the access holes in the floor no longer lined up with the bolts so you can't get oil on the bolts.

The captive nuts were intended for assembly and won't hold if the threads are rusty.

If you want to proceed I'd drill a small hole above each bolt so you can get some Kroil or PB Blaster on them. You can spray the bolt heads from below all day but not much is going to get up to the threads.

1988. Yeah my biggest fear is the bolts themselves... I'd imagine I'm looking at years of stubbornness just waiting to challenge me. :roll:

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 11:00 am
by letank
Where are you buying the replacement? I need to do them too... one corner is completly crushed and cracked!

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 11:44 am
by Rinkle_Stinkle
letank wrote:Where are you buying the replacement? I need to do them too... one corner is completly crushed and cracked!

I haven't decided yet. before I order I would like to know what I'm getting into.

Mine aren't "crushed" yet but I foresee that in the next 5 years.

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 12:42 pm
by ShagWagon
Go put some your favorite penetrating oil on them now. Thank me later.

I did pretty good on my try. I got 11/12 and on the last one on the passenger side I broke it. I took it to a shop so they could make a cut, bend out a flap, take care of the mount, then fold it back and weld it. NP for them.

Re: Body Mounts and bushing replacement

Posted: Wed Nov 29, 2017 4:09 pm
by nograin
I've posted a bunch of info on the later mounts.
Original Body Mounts

Also some photos of the project in this thread
http://www.ifsja.org/forums/vb/showthread.php?t=178320

I did not remove the entire body - but that is the right way to do it. I did 'em as needed. One day I'd like to revist the rear ones and do them better.

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 8:59 am
by SJTD
You may have noticed the front mount on each side is different than the others. Some kits don't have the correct fronts.

BJ's says theirs is correct and the pichers look like it.

Last I looked TGW's is not.

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 9:31 am
by Rinkle_Stinkle
ShagWagon wrote:Go put some your favorite penetrating oil on them now. Thank me later.

I did pretty good on my try. I got 11/12 and on the last one on the passenger side I broke it. I took it to a shop so they could make a cut, bend out a flap, take care of the mount, then fold it back and weld it. NP for them.

haha! i'll get right on it this afternoon!

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 9:32 am
by Rinkle_Stinkle
nograin wrote:I've posted a bunch of info on the later mounts.
Original Body Mounts

Also some photos of the project in this thread
http://www.ifsja.org/forums/vb/showthread.php?t=178320

I did not remove the entire body - but that is the right way to do it. I did 'em as needed. One day I'd like to revist the rear ones and do them better.

Amazing information!!! I very much appreciate it! :-bd

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 9:32 am
by Rinkle_Stinkle
SJTD wrote:You may have noticed the front mount on each side is different than the others. Some kits don't have the correct fronts.

BJ's says theirs is correct and the pichers look like it.

Last I looked TGW's is not.

very good to know!

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 2:11 pm
by candymancan
What i wanna know is do they sell the actually mount welded to the frame.. I have 3-4 of them on mine where the rubber sandwich has caused the metal to rol away so while the rubber is still there the mount isnt lol. I can lift and push down the bumper in the rear because both very rear mounts no longer hold the body on anymore

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 2:14 pm
by SJTD
BJ's has them.

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 2:24 pm
by candymancan
You sure they have the brackets ? i cant find em, all i see are the two front brackets by the doors. But nothing for rear or middle. Might have to make them myself somehow

Re: Body Mounts and bushing replacement

Posted: Thu Nov 30, 2017 8:27 pm
by SJTD
Sorry didn't pay attention to which ones they were. Just saw body mounts.

Re: Body Mounts and bushing replacement

Posted: Fri Dec 01, 2017 6:27 am
by Rinkle_Stinkle
so what if I find out the mounts are good and just want to replace the bushings... still the same techniques right? remove bolts and lift just enough to slide them on and replace bolts?

Re: Body Mounts and bushing replacement

Posted: Thu Sep 02, 2021 6:29 am
by Bene 1987
Group,
Hello, I am new to this site! I recently started the process of trying to replace my worn out body bushings on my 87GW. Predictably, some of my bolts failed at the top nut. I was wondering if there is another option to reach the top bolts without cutting through the floor board? I recently had body work done to fix the rusted floor boards and I do not want to cut through this work I just paid for. Can they be reached from underneath?