One simple way to create more room for these oversized wheel and rubber packages is to have the guards rolled or lipped.
Guard or fender rolling consists of folding the inner lip of the wheel arch into a tighter "V" shape or completely flat "U" shape which enhances wheel clearance.
The spot welded double metal lip of the rear guards or the single skinned lip of the front wheel arch can be pressed all the way around the inner side of the arch with the use of a rolling machine which bolts onto the wheel hub. With a certain technique which can differ for each car, successful rolling can depend on the condition of the paintwork (ie age) or previous repairs in that area - usually there are no hassles with paint damage or cracking because heat is applied during the rolling process, to allow the paint to flex. Successful rolling will depend on the condition of the paint work. Usually if the paint is original there is no cracking.
However, this can change if the vehicle:
Any modification to other parts of the wheel arch other than the area causing the damage may be necessary in some cases if:
Examples of other areas causing problems that may need modification include: