OK. I just bought a dremmel (the smaller hand-held cordless) which has the ability to cut metal. I have had a problem with installing the ingalls camber kit because it kept hitting this little lip inside the inner fender. And it also required a bit of trimming inside the control arm.

My question is: Since I'm a rookie Is there anything I need to be wary of before trimming the inner fender?

 

1) Get fiber reinforced discs for your dremel. They will last long(enough)er.
2) WEAR EYE PROTECTION.
3) Get some super-zinc primer/sealant paint. Clean the very thoroughly once you are done and sure that you stuff will fit, then paint. We don't want any rust.

You just need to trim back a little of the lip, right? If you get into anything structural, that's more complicated.