What is considered a rusty underbody? - JeepForum.com

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post #1 of 21 Old 07-01-2013, 09:49 AM Thread Starter
RoldGold
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1996 ZJ 
 
Join Date: Jun 2013
Location: Philadelphia
Posts: 317
What is considered a rusty underbody?

I've often threads here on JF where people mention how the bottom of their ZJ has no rust or little rust. I am curious to see whether my ZJ fits that description, but I don't really know how you determine how much rust is too much rust. Mine has a little bit of surface rust in odd places, specifically on the frame rail where the AC drains (stupid design if you ask me) and on the front axle where the track bar and steering stabilizer mount, but it still doesn't look all that bad. Anyone have a "rust scale" or can point me in the right direction to determine whether the amount of rust that I have is "bad"?

Thanks in advance!


1996 Grand Cherokee Limited 4.0L
PSC Steering Gear; NP249 w/ new VC; Moog TRE's, Track Bar, Stabilizer bar bushings and endlinks, control arm bushings
Still no lift, and almost no paint on the hood
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post #2 of 21 Old 07-01-2013, 10:04 AM
a70eliminator
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Location: Kent Ohio
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Here's what an Ohio truck usually looks like underneath, and this is actually one of the better clean ones.
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post #3 of 21 Old 07-01-2013, 10:17 AM
coltman151
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That's a Tennessee jeep. Entire underbody has zero rust.

95 Laredo 4.0, 2" RE BB, RC N2.0 Shocks, Custom Roof-Mount Light Bar w/ 6 lights, Bumpers deleted, Homemade sway bar discos, Michelin LTX 31x10.50s, and a Dog Box :)
Planned: Homemade Spare tire carrier, double shear front track bar, 4 adjustable rear control arms, New Rims and 33" Wrangler MT/Rs or BFG M/T KO's w/ LOTS of trimming.
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post #4 of 21 Old 07-01-2013, 11:20 AM Thread Starter
RoldGold
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Wow a70, I hope that isn't your truck! I don't mean to rub salt in the wounds but mine looks almost as good as coltman's, which is weird since I live in PA.

1996 Grand Cherokee Limited 4.0L
PSC Steering Gear; NP249 w/ new VC; Moog TRE's, Track Bar, Stabilizer bar bushings and endlinks, control arm bushings
Still no lift, and almost no paint on the hood
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post #5 of 21 Old 07-01-2013, 11:47 AM
a70eliminator
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1998 ZJ 
 
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Oh yea it's mine alright. In Northeast Ohio the roads get salted continuously all winter long, the salts are highly corrosive and oil sprays are about worthless. Every vehicle I've ever owned body rusted out well before the drivetrain wears out, I gave up trying to keep anything nice it really really sucks.
Sometimes the roads aren't even bad but there goes the salt trucks litterly dumping the salt on the chance that there mignt be a storm overnight.
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post #6 of 21 Old 07-01-2013, 12:01 PM
ZJMatt
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1998 ZJ 
 
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Well put it this way... I bought a 98 off my buddy that was so rusty that the front passenger's control arm tore completely out of the frame. Bought it for the axles since it only had 108k miles and 3.73 gears. When I put it up on jack stands, the jack stands went right through the frame rails in the back. Swapped axles and 2 months later found a large crack in the A-pillar support on the driver's side on the jeep I just put all the work into. Went to weld it and all the metal around it was just flaking out... so now that jeep is a parts jeep too.

Here's a pic of my new 98 which came from Vermont and has 202k miles. I was really surprised for a Vermont vehicle to be this clean, couldn't turn it down. I just replaced the exhaust before taking the pic...

The "Mall Crawler" - 1998 ZJ Grand Cherokee 5.2 V8, 5.5" LongArms, 32s, 12000lb winch & more.
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post #7 of 21 Old 07-01-2013, 01:06 PM
CanaanTSA5
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Location: Manchester
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This is the only rust I have on my 98. It's been in New England it's whole life. Undercarriage is clean, just the Rocker Panels that are trashed.



1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #8 of 21 Old 07-01-2013, 05:06 PM
a70eliminator
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Yep that's mine all over, front rocker rust I attribute to that rediculous foam rubber sponge like filler behind the fender liner, the foam soaks up water like a sponge and never dries out, why did they use that crap why!
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post #9 of 21 Old 07-01-2013, 07:15 PM
coltman151
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Location: maryville
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If yours looks like mine I'd say you easily fall into the little to no rust category. Mine I'd think is a little better than normal even. The dirt stays without being washed away by oil haha

95 Laredo 4.0, 2" RE BB, RC N2.0 Shocks, Custom Roof-Mount Light Bar w/ 6 lights, Bumpers deleted, Homemade sway bar discos, Michelin LTX 31x10.50s, and a Dog Box :)
Planned: Homemade Spare tire carrier, double shear front track bar, 4 adjustable rear control arms, New Rims and 33" Wrangler MT/Rs or BFG M/T KO's w/ LOTS of trimming.
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post #10 of 21 Old 07-02-2013, 06:52 AM
zj97ltd
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Seeing this stuff reminds me of why I don't want to leave FL...
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post #11 of 21 Old 07-02-2013, 07:10 AM
zjforlife
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Bottom of my 1998 5.2 limited (and yes it's 2wd) lol

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From Florida
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post #12 of 21 Old 07-02-2013, 02:43 PM
ZJMatt
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Quote:
Originally Posted by zj97ltd View Post
Seeing this stuff reminds me of why I don't want to leave FL...
And why I plan on moving down south once I get my crap together!

What I'd do to not have to deal with rust... it makes the smallest, easiest jobs into the biggest unknowns. Not to mention most every vehicle being rotted to nothing before the motor/trans die.

The "Mall Crawler" - 1998 ZJ Grand Cherokee 5.2 V8, 5.5" LongArms, 32s, 12000lb winch & more.
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post #13 of 21 Old 07-02-2013, 02:56 PM
zj97ltd
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Quote:
Originally Posted by ZJMatt View Post
And why I plan on moving down south once I get my crap together!

What I'd do to not have to deal with rust... it makes the smallest, easiest jobs into the biggest unknowns. Not to mention most every vehicle being rotted to nothing before the motor/trans die.
Yeah as much as I like the idea of moving to a mountainous, 4 season area, I like my vehicles too much to watch them rot away.
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post #14 of 21 Old 07-02-2013, 03:06 PM
coltman151
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1995 ZJ 
 
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Location: maryville
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Just a tip, if you come to the south you can't give away a car with rust.

95 Laredo 4.0, 2" RE BB, RC N2.0 Shocks, Custom Roof-Mount Light Bar w/ 6 lights, Bumpers deleted, Homemade sway bar discos, Michelin LTX 31x10.50s, and a Dog Box :)
Planned: Homemade Spare tire carrier, double shear front track bar, 4 adjustable rear control arms, New Rims and 33" Wrangler MT/Rs or BFG M/T KO's w/ LOTS of trimming.
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post #15 of 21 Old 07-02-2013, 08:17 PM
ZeeJay1997
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if you feel compelled to asked the question, it is probably too much rust.


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