68 Dart 4dr

The front and rear glass is about 3/4 inch taller on the 4-doors. PVWs will interchange because the door frame and gaskets are different.

If you look at Valiants for drive train parts, the drive shafts are shorter.

The 4-doors make great daily drivers with a lot of TLC and a mild powertrain. As for fixing them up, try running a search for "Show us your 4 door hot rods".

http://www.forabodiesonly.com/mopar/showthread.php?t=268972&highlight=door