51 Chevy pickup My driver's side fit pretty well but when I tried to fit up the passenger's side I found that the three main holes on the cowl are about 1/4" off and I can't seem to twist, raise, lower the fender to make it fit. I had the inner and outer replaced on both sides so I don't know the best way to solve the problem and still have the front end correct.
if it were me, i would bolt up the front of the fender (assuming that the bolt holes on the radiator support line up) then use some vise grips and clamp it in place. make sure the fender is all up to par then re-drill the holes. it shouldnt affect anything. when your done compare fender heights between the driver side and passenger side. -- robert