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  #1  
Old 06-13-2011, 07:35 PM
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Pinch 'n Weld mod help

So i've been searching all over JG and cannot find a good "how to" on how to do the Pinch and Weld mod for over sized tires. Just wondering for the guys who have done this already what tools they needed and maybe if they can give some guidelines or "heads up's" on doing this mod.

for those of you looking to lift your jeep , i have a 2" lift and running 265 tires.. i have a 1.25" spacer and im definitely rubbing when i turn hard left or right, a pinch n weld is necessary!

Thanks guys

Dave
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Old 06-13-2011, 09:19 PM
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Re: Pinch 'n Weld mod help

I initially tried doing the pinch-weld mod while leaving the tire on the Jeep, and using a hacksaw to cut the metal. After cutting one of the cuts, I said screw that, and went and bought some new metal blades for my Sawzall.

I wish i would have taken photos during the entire process, but I did not.

Here's a quick how-to on how I did mine. I run 265/70/17 on AEV Pintlers with no lift, and no rubbing - for reference.

1. Jack Jeep up, use jack-stands for safety - remove tire.

2. Use Dremel to cut plastic fender well lining. You want to cut the "lump" out of the fender well - you can't miss it, it's the part the tire rubs on. BE CAREFUL not to cut into the sensor behind the fender well plastic. Just pull the plastic outward as you cut it and you will be fine.

3. Be prepared for hot plastic when you cut the fender well plastic. I caught a couple extremely hot drips on my arm, and on my face while doing this. Be sure to wear gloves, long sleeves, and safety glasses. It wasn't agonizing, but you don't want that shit in your eyes.

4. Once the plastic is cut out you will see the metal pinch weld. You want to make cuts in this with your sawzall. I made my cuts about every 2 inches, and all the way down to the bend.

5. Once all the cuts are made, begin in the middle, and start hammering the pinch weld towards the engine bay to flatten it down. I tried using a basic house hammer, and even a ball peen hammer. I found it much easier to use a 3lb. drill hammer. Be sure there are no sharp edges left on the pinch weld.

6. During the hammering, you will likely knock paint off the pinch weld, chip off any loose paint chips. Clean the area very well with a degreaser. Sand the area as best as you can. I used a piece of sand paper. After sanding, clean once more. Then spray with undercoating spray. I did about 3 coats total.

Sorry for the crappy "how-to." But that is basically how I did mine.




Stuff I used:

3lb. Drill Hammer
18V Cordless Sawzall w/Metal Cutting Blade
Dremel w/Cutting Disc
Black Undercoating Spray
Degreaser
Sand Paper
Gloves
Safety Glasses
Towels

I also used a floor jack, couple of jack-stands, and an impact driver to make things quicker/easier.
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Old 06-14-2011, 12:32 AM
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Re: Pinch 'n Weld mod help

Found this while doing a search. I'm doing my pinch weld tomorrow. Seems rather easy

http://www.jeepsunlimited.com/forums...pinch+weld+mod
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Old 06-14-2011, 12:04 PM
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Re: Pinch 'n Weld mod help

Thats good stuff guys!! Seems like there are several ways to deal with hiding that cut we have to make in the plastic liner... i've seen some guys actually use plastic rivets to cover that hole with another piece of plastic over it. Seems like the "how to" that 06DubyaK posted is the cleanest way of doing it. Maybe when you do it you can also put up a "how to" on the JG forum?
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Old 06-14-2011, 01:32 PM
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Re: Pinch 'n Weld mod help

I just used a grinder to cut a few reliefs in the pinch, Smacked it a bunch with a ball-peen. painted the bare metal. put the plastic liner back in. I didn't modify the liner at all (every modified liner i've seen looks like crap IMO, no offense.) It rubs on the liner slightly, but I can live with that. I did it to save my tires that's all. I also replaced the plastic rivets with bolts and clips to hold the liner better, it was always somewhat loose with the rivets.
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Old 06-14-2011, 01:49 PM
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Re: Pinch 'n Weld mod help

the problem now that i have is that my tires have burned a hole through the plastic so i need to clean that up somehow :-/
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Old 06-15-2011, 12:09 PM
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Re: Pinch 'n Weld mod help

shop i were i took mine they just cut it off half way through the pinch weld.... its been fine for 2 years
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Old 06-15-2011, 12:43 PM
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Re: Pinch 'n Weld mod help

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Originally Posted by dmlong47 View Post
shop i were i took mine they just cut it off half way through the pinch weld.... its been fine for 2 years
what did they do with the plastic lining in the wheel well ?
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Old 06-15-2011, 01:20 PM
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Re: Pinch 'n Weld mod help



pic is better than words
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Old 06-15-2011, 01:24 PM
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Nice and great write up. +1 for ya. I gotta do this soon. I'm still runnin my 255/70/17 and I get a lil rubbage. Good stuff here cap'n, thanks
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Old 06-15-2011, 01:37 PM
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Re: Pinch 'n Weld mod help

Quote:
Originally Posted by dmlong47 View Post


pic is better than words

wow it looks like they cut the plastic liner to match and just left it open, doesn't look half bad... am i seeing this correctly or am i missing something?
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Old 06-15-2011, 01:51 PM
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Re: Pinch 'n Weld mod help

yea they put a screw behind the pinch weld to keep it from flopping
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