OK..I live near Berger Chevy and have seen numerous DH cars. I KNOW they are a fiberglass fender bonded over top the original. I've looked the cars all over and know what was done to them. Ron from GMMG that has the DH pilot car/drag car told all the work that went into creating the fenders and getting them to fit/look right. The Pro Star issues you read about are because they were 15" wheels and the inner diameter of the wheel contacted the brake caliper. If you run a 16" diameter or larger wheel you will have no issues. Aren't you the same guy that started a similar thread months ago that went for 15 pages of nothingness and then you moved so it never got started?

 

getgone has already answered all your questions. its not hard to buy a 11''-13'' wheel with the right offset/backspacing and bolt it on...if you can change a tire then you can do all that is required to put wider wheels on a 4th gen