It should be cut out and have a patch welded in. You should assume that most of the frame is load-bearing in some way and should be fixed properly. Bolting or riveting a patch in a structural area is not generally an acceptable repair. Riveting can be strong if done correctly (not pop rivets) but it just creates even more pockets to hold moisture and rust again. He's right, it's thin sheetmetal and the welder will have to know what he's doing. The key is find a good welder. It's like welding normal automotive outer body sheet. Afterwards both sides of the weld need to be coated/painted. Another point - I've NEVER run across a car, DeLorean or no, that has a half-dollar-size hole rusted in it anywhere without there being a lot more rust in other areas that you just haven't found yet. Keep looking. Especially inside the front crossmember between the lower control arms, the front spring towers, under the steering rack etc. Dave S --- In dmcnews@xxxxxxxxxxxxxxx, "supermattthehero" <supermatty@xxxx> wrote: > On my car I have a rust hole in the frame about the size of a half > dollar. It is located on the rear part of the frame, on the > underside, at the wide section beneath the passenger-side rear > suspension mount area. Any recommendations how to take care of this? > One gentleman I spoke with said this part of the frame is not load > bearing, so I should just scrape off the rust and coat it with POR- 15. > He also said that its very difficult to weld the DeLorean frame > because the metal is so thin.