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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > WK Pinch Weld Mod. A few pictures.

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Unread 05-27-2011, 08:47 AM   #1
JSajczuk
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WK Pinch Weld Mod. A few pictures.

The Pinch Weld Mod. Was done yesterday. I have a buddy at a body repair shop and they helped me out with it...so here are a few pictures.


Before:


After liner removed, the battery disconnected and the airbag sensor moved out of the way - we prepared the pinch weld, made as few of cuts as we though we needed, and made the cuts between the factory welds. We tried to move the joint over without cutting but it was just not going to.


After the joint was bent over we re-welded the cuts we made in the pinch weld to regain the possible lost strength fron cutting.


After welding, the prepared area was primed and the weld was sealed with body sealer...to help prevent the modification from rusting.


Once dried, we painted the area with underbody coating and remounted the airbag sensor.


Then the fender liner was cut, heat gunned to fit and reinstalled. AFTER:


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Unread 05-27-2011, 09:13 AM   #2
Budasac
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nice job. This is one of the many mods I hope to get to this weekend.
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Unread 05-27-2011, 09:28 AM   #3
ogie
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Quote:
Originally Posted by JSajczuk View Post
The Pinch Weld Mod. Was done yesterday. I have a buddy at a body repair shop and they helped me out with it...so here are a few pictures.


Before:


After liner removed, the battery disconnected and the airbag sensor moved out of the way - we prepared the pinch weld, made as few of cuts as we though we needed, and made the cuts between the factory welds. We tried to move the joint over without cutting but it was just not going to.


After the joint was bent over we re-welded the cuts we made in the pinch weld to regain the possible lost strength fron cutting.


After welding, the prepared area was primed and the weld was sealed with body sealer...to help prevent the modification from rusting.


Once dried, we painted the area with underbody coating and remounted the airbag sensor.


Then the fender liner was cut, heat gunned to fit and reinstalled. AFTER:
Do you need to reweld the area when you're done? Does it make a huge difference?
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Unread 05-27-2011, 04:55 PM   #4
Budasac
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I have never seen anyone else re-weld the pinch after the mod. Nor have I ever heard of any issues. That being said. I have a welder. So I will be welding mine when I do it. Good idea, and certainly can't hurt. I didn't even think about it until this post.

Also like how the liner was re-worked. I'm assuming they just cut a slot and started heating that hump and working it until flat? Looks very clean. I've seen some others that were, well, not so clean looking.

I was thinking about doing the pinch mod and leaving the liner for now. It shouldn't rub unless I stuff it, and even then, if the pinch is done, the tires will be o-k. I'll just tear up the liner.
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Unread 05-27-2011, 06:00 PM   #5
JSajczuk
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The guys at the body shop suggested that it would be 'better' to re-weld after the cut. I am not sure either way...but I figured the re-weld would be the 'safer/stronger' way to go.

The liner was cut, heated to flat, and resealed...nice to have a friend at a body shop (I know). I take NO CREDIT for the professional results/work They did it all!
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Unread 05-27-2011, 07:51 PM   #6
08Hemiwk
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I'm a newbie to the jeep scene and I was wondering what exactly this is for. I did a search but I'm turning up more results mentioning doing it than an answer to what it actually does. No doubt it must be beneficial but I've never done any such thin on any of my vehicles
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Unread 05-27-2011, 08:19 PM   #7
Budasac
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Quote:
Originally Posted by 08Hemiwk View Post
I'm a newbie to the jeep scene and I was wondering what exactly this is for. I did a search but I'm turning up more results mentioning doing it than an answer to what it actually does. No doubt it must be beneficial but I've never done any such thin on any of my vehicles
It's to make room for bigger tires. Otherwise when the wheel is turned and/or the suspension is compressed the tire will tear through the well liner and get cut up by the protruding pinch weld. Folding it over simply gives the tire another inch or so of space.
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Unread 05-27-2011, 08:27 PM   #8
modette
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Quote:
Originally Posted by Budasac View Post
It's to make room for bigger tires. Otherwise when the wheel is turned and/or the suspension is compressed the tire will tear through the well liner and get cut up by the protruding pinch weld. Folding it over simply gives the tire another inch or so of space.
I'm new too, so thanks for explaining that...so something to worry about when you go to bigger tires!!! Good to know.

Could you not beat the pinch weld flat? The bro has a welder, and I'm good at this type of stuff...but it be a long ways off for now...just enjoy taking the wife & dog out to some of the places I typical Dual Sport to.
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Unread 05-27-2011, 08:31 PM   #9
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I haven't done it yet, but apparrently it's difficult to hammer it flat w/o cutting. Some people have had luck torching it first. I'm gonna try everything. Heat it first. Then ,if I have to, make as few cuts as possible, and finish it with a weld.



I actually have 32's now and I'm not going bigger. But I am installing some 1.5" spacers this weekend to widen the stance a little and have a feeling this mod will be needed.
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Unread 05-27-2011, 08:31 PM   #10
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wow! looks really good!
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Unread 05-27-2011, 09:04 PM   #11
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Budasac,

The pinch weld mod really is not bad, Just time consuming, I went overboard with the bed liner spray.
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Unread 05-27-2011, 09:25 PM   #12
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agreed, great job! I'm wondering if the number of cuts could be reduced. esp using a BFH / mallet that should coax the metal over? I wondering how to do this w/o a cut off tool or angle grinder, neither of which I have need to clearance the tow hitch and bolt threads too. right now I get the faintest of rubbing making hard U turns, am sure would be worse under compression.
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Unread 05-27-2011, 10:33 PM   #13
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Quote:
Originally Posted by DAHEMI View Post
agreed, great job! I'm wondering if the number of cuts could be reduced. esp using a BFH / mallet that should coax the metal over? I wondering how to do this w/o a cut off tool or angle grinder, neither of which I have need to clearance the tow hitch and bolt threads too. right now I get the faintest of rubbing making hard U turns, am sure would be worse under compression.


I'm sure you could get away with a hack saw for the pinch weld (might take a while) Def. need a cut off tool for the hitch. Not much room to work up there. I'm sure Harbour Freight delivers to the island, no?
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Unread 05-27-2011, 10:48 PM   #14
criket
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I did my pinch weld with a big hammer. No cutting, just plain old beating it til my hands and fingers bleed. Now that I look back, I could have done a better and easier job if I'd thought it through.

Nice job on the pinch weld mod. Probably the best I seen on here so far.
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Unread 05-27-2011, 10:51 PM   #15
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Wow! Props for cutting sheet metal on a WK!

To the guy asking about a hack saw - you would be well invested to buy an angle grinder $20 for a cheapie at harbor freight or $45 for a decent one at Lowes.

I have this one (which was about $40 at Lowes) and it is fantastic.

http://www.amazon.com/Hitachi-G12SR3-2-Inch-Angle-Grinder/dp/B000ULQVCU
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