When the rear end assembly was bolted in place; the rear suspension's arms in the up position, were very close to the frame so I made the decision to "C" notch it. The rest of the rear assembly components fit past the frame and into the body, and the trunk floor pans had to be made .  Before I took the body off the frame the trunk had to be fabricated and I started by welding 3/4 X 3/4 square tube to the body supports at the front and back of the trunk.  All the rusted metal was cut away.  Right and left side with all the square tube in place.  A paper pattern was made of 1/2 of the trunk floor as that is all that would fit through the trunk opening as the new floor pan is 4' X 5'.  Then a 18 gauge steel floor pan was cut using the paper pattern with holes drilled in it for spot welding to the tube supports.  Finished floor pan with the new trunk latch box (at the rear).  Right and left sides of the finished floor pan. ...