Not much...bought truck ('78 F-150), ripped off the bondo-bed, yanked the 3" pipe body lift (left the 4" suspension, sold the 31's (!) on it, bought some 35" M/T's, swapped out the 4-bbl, new poly body bushings, bought step side bed & given another (rough), installed factory 67-72 F-100 bucket seats, & gave away a lot of the disco parts yanked off of it (double tube bed bar, grab handles, hoop steps, etc.)......
Now on to the straight header exhaust fix......