I have a choice of going with a 1977 camaro clip for my 49 buick sedanette or in the alternative, I can use a 1966 Buick electra frame that comes with the complete driveline (401 nailhead with quadrajet intake/stock turbo 400). Both have their challenges. The camaro clip would give me the desired disc brakes and comes completely rebuilt, hub to hub. The 66 buick frame would require a modification to get disc brakes and would also need to be shortened 5 inches to match the wheelbase of the 49 sedanette. I guess option 3 is to use the camaro clip and take the nailhead/tranny/driveshaft and rear end and use some chevy truck style rear control arms and call it a day. Look forward to your comments or an education from those that have already done this swap in some form for a 49 or similar buick.