ANOTHER drip rail question. Its new though. I promise.

[lyrikz]

Working on the cab of my truck. Drip rails are in great shape. I do have one area that has some issues. I guess at one time the drip rail was leaking, the PO of the truck fixed that by putting bondo to smooth the seams and seal em. It worked, but looks hideous. I have one area were some rust is building up and its inbetween the drip rail and the cab. If you look at the picture you can see where the drip rail bows down a bit. THe bowing is caused by some rust/scaling thats pushing that down... THat metal is very solid there and i dont think i need to shave it completely.

I want to remove that drip rail, clean, rustproof and reinstall a new drip rail. My question is, is the drip rail held on by spot welds??? Anyone removed a drip rail and reinstalled new ones. I dont want to shave them, just fix what i have.... Thanks.