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post #1 of (permalink) Old 03-01-2003, 10:29 PM Thread Starter
 
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YJ skid plate removal for exhaust work

I need to replace my exhaust on my 1990 YJ (4.2L, 5 sp). Since the catalytic converter hides up above the skid plate, I figured it be easier to work the exhaust without the skid plate in place. But removing it looks like it could be a PITA since it appears that the trans and/or tranfer case are attached or resting on it or something.

Any tips or tricks for dropping the skid plate? Or is it just as easy (or easier) to swap out the whole exhaust system with the skid plate in place?

Thanks in advance
Mike
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post #2 of (permalink) Old 03-01-2003, 11:31 PM
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Re: YJ skid plate removal for exhaust work

There's nothing to dropping your skid plate. Just undo the tranny mount bolts, support the tranny, and then undo the 6 bolts and drop the skid. That's basically all there is to it. Anyone have more to add?
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post #3 of (permalink) Old 03-01-2003, 11:31 PM
 
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Re: YJ skid plate removal for exhaust work

You could concievably do the exauhst work with the skid plate in place, but getting it down will make your life much easier. As far as it being a PITA, it's really not that bad... just support the trans at both ends. Soak the 6 bolts down with PB blaster, shock the bolts, etc. When you go to remove the bolts, do it gingerly. There are 2 possible ways to mess up here: #1 you could brake the nut above the bolt that sits down on the frame rail loose, and the bolt & nut would turn together, or of course #2 you could just snap the head right off.
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post #4 of (permalink) Old 03-03-2003, 07:59 AM
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Re: YJ skid plate removal for exhaust work

I would take the time to drop the skid. It will make your job easier with the Cat. And while it is down I would paint it. And take a good look at your frame rails. While it is apart take care of any rust, and then put it back together. Always stay on top of the Rust under a jeep, cause if you let it get away, it will act fast.
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post #5 of (permalink) Old 03-05-2003, 10:25 AM
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Re: YJ skid plate removal for exhaust work

well i had to repair my exaust and replace the transfer case without removing the skid plate it was a little more work but in the long run it still seems better than removing the skidplate. u might want to do it, i couldn't because i had to weld it on to my frame.
post #6 of (permalink) Old 03-06-2003, 11:40 AM
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Re: YJ skid plate removal for exhaust work

Wow welded to the frame thats a pain in the ass even if ya did break all the bolts off you could weld some new mounts onto the side of the frame and fab up a new skid plate and get some better protction. I would pulle it off much easier access to everything..
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post #7 of (permalink) Old 03-16-2003, 06:22 PM Thread Starter
 
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Re: YJ skid plate removal for exhaust work

Well I did the exhaust system this weekend. All in all, it didn't go too bad. The skid plate came out pretty easily even though the bolts were pretty rusty and I had to use a 3 ft breaker bar to gently break them free. Of course I had to cut off the old exhaust since that was pretty darn near rusted together. Fortunately the 2 bolts holding the front pipe to the manifold came free without much persuasion. Had to improvise in a few spots to make everything fit together...including a trip to Advanced Auto to get another tailpipe since 4WD Hardware sent me one that wasn't even close to fitting [img]images/graemlins/cussing.gif[/img] Now I have to call them and see if they'll take it back and all.

In the end...
1. Removing the skid plate helps alot as far as access goes to both removing and installing the exhaust.
2. Removing the rear track bar was necessary to get the tailpipe in. I guess if you have a lift you may have enough ground clearance to swing the tailpipe around to get it in, but laying on the garage floor with the Jeep on jackstands didn't give me enough room so I had to remove the bar.

One more repair on the big list to scratch off...
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