I agree with Denny leave the rivets alone, If you have access to a Steam Genny ...steam clean the grease off real good before taking it too the blaster or use a degreaser solution & a pressure washer..will save ya some $$... grease and blastin dont mix and just adds time for the blaster man wich you are payin for blastin not grease removal.
BEEN THERE.
just a tip
Tim


1952 Chevy Shortbed

Photos in Photobucket

If It Aint Broke Fix It Till It Is!