Hey kids, just posted this reply in another thread but realized other guys are looking for this information so made a standalone thread about it.
For anybody seeking information on pinch weld modification for 2011+ aka WK2 its the exact same process as the WK , etc
If anyone made it to this post via a web search. If you need to do this or thinking about doing it its really not that hard or scary. If you plan on running a larger tire or you want to slam your jeep (to each his own) you will probably want to take care of this.
The pinch weld is the fun part of metal that jets out in the rear of your front wheel wells. This is where two metal components meet and are "pinch welded" together to form a nice tire ruining component for you
It hides behind the wheel well liner/carpet
So here is what you do to eliminate this:
Buy some stuff that you most likely don't have
1) safety glasses
2) electric cutoff wheel (you can use a hand saw or sawzall as well)
3) spraypaint for rust prevention - I chose flat black
4) get some work gloves that will protect you from sparks if youre using a cutoff wheel
5) Jack stands... if you don't already have them.
6) Flathead screwdriver to pop off plastic retaining nuts/screws. If you don't have a flathead screwdriver we might need to talk
7) couple zip ties - I ended up using zip ties to temporarily hold the carpet back so I could work on the area, this way I didn't have to completely remove the fender carpet
1) Loosen your lugs on your front wheels
2) Jack your jeep up, yes the factory jack will work even though its horrible. Pop out a couple plastic push pins and pull back fender liner/carpet. You will know exactly which 2 I'm talking about when you get there.
3) Use jack stands or a spare to put under the vehicle as a fail safe if jack fails
4) Locate pinch weld - you can freestyle this part but I physically cut the carpet out of this area, I have seen some guys simply form the carpet back to fit, I don't really care
5) Make notches with your cutoff wheel, use safety glasses because sparks are going to go everywhere
6) Use a hammer or a mallet to knock the pinch weld towards the engine / inside
7) Hit the area with some sandpaper, clean area with alcohol or windex, etc
8) Coat area with a few coats of whatever you want - I chose flat black paint
Pictures for those who love pictures:
One you have your cuts made, hammer time towards the inside of your vehicle (towards the engine) Then knock down the loose paint with some sandpaper