Hi Ian, I've got a 74 too and I just did this on the back bumper. It was really easy and I'm no pro. Basically you unbolt the bumper, gut everything like the shocks, rubber cover and cover bracket then oval out the holes and move the license plate holder up about 3/8ths of an inch then bolt back on. Really simple. To move the plate all I did was drill the holes on the bracket a holes worth lower then reattach and there was still plenty of clearance.I would love to see pics of how peoples bumpers look lipo'd without the filler pieces front and back. If anyone has pictures of the process that would be awesome too...Thanks
love this car!! especially the hood.