Can anybody tell me what cars have the same frame as a 62 Olds 98 convertible. I recently came into a 77k original mile 98 convertible but the frame rails along the side are really bad. I was told the Hollander interchange says it doesn't iterchange with any other cars but I would think that's going by an exact fit. I have good welding skills so I can transfer over extra braces for a convertible, if there's a sedan/hardtop frame that's similar. Also, where is the extra length of the 98 body compared to the 88/Starfire body? Longer doors, quarters, fenders or all three. Any help would be gratly appreciated. Thanks! -Ed