I just picked up a 1975 Stingray and the front and rear bumper covers are splintering or cracking. I am just starting out in this project and was wondering if this is normal or should I be concerned? It looks as though that this may be due to age and the fiberglass covers are just old. When I picked up the car, it was cold out. I parked it in my garage which is temperature controlled, came back out a while later and there they were, all over the rear especially but some on the front. Also, what kind of cost should I be looking at, estimated of course, to get this repaired? Any thoughts or advice would be helpful.