In order to dimension the various frame components that needed to be made, I drew several guidelines on the floor, including a vehicle centerline and perpendicular lines at the wheelbase ends. The measurements were painstakingly done with an attempted accuracy of 1/8inch.
It was necessary to accurately position the two drivetrains to mark their positions on the floor. You can see the black markup lines on the floor. Black was not a smart choice for the floor markings, as spills made them hard to see. Later on, I repainted all the lines with OSHA yellow, which was much more visible. Here's the front drivetrain.
Here's the rear drivetrain, 1985 frame/suspension with 1970 engine.
Everything is propped into position just long enough to make the measurements. The 1970 engine is resting in the unaltered 1985 cradle with the help of a noticeably deflected two by four. At the time, I had not decided which torsion bars to use, the 1970 or 1985 versions. There's one of each in the picture. The 1970 ones are stronger and stiffer, and were the eventual choice.
It sort of looks like a car. Without a frame... or a body... or an interior...well it has wheels, anyway.
Looking back at this somewhat large engine that would be in the back of the car, I contemplated how much I wanted it to stay in the back of the car. The frame was definitely going to be a challenge. I did not like how the ends of the Eldorado frame rails were aimed at the occupants. Those definitely had to go.