Does anyone have the crash sheet diagrams for a 1971 Demon?
Go here and download a factory service manual
Service Manuals – MyMopar
Despite having a Dodge, you likely will want to download a diagram for a Valiant or Barracuda. The reason for that is the Demon shares the 108" wheelbase with the Barracuda, Valiant, and Duster. Most Dart diagrams are for the 111" Dart wheelbase.
The frame rail measurements up front and in the back that are confined to the front clip or rear clip will be the same, the additional wheelbase is between the front and rear "subframes" in the floor pan. So in the above diagram, most of the measurements will work regardless of the wheelbase, with the exception of the diagonals the go across the floor pan in the middle (ie, the 67" and 158.89" measurements in the top picture).
You can use any year Duster for your Demon's chassis measurements.
Go here and download a factory service manual
Service Manuals – MyMopar
Despite having a Dodge, you likely will want to download a diagram for a Valiant or Barracuda. The reason for that is the Demon shares the 108" wheelbase with the Barracuda, Valiant, and Duster. Most Dart diagrams are for the 111" Dart wheelbase.
The frame rail measurements up front and in the back that are confined to the front clip or rear clip will be the same, the additional wheelbase is between the front and rear "subframes" in the floor pan. So in the above diagram, most of the measurements will work regardless of the wheelbase, with the exception of the diagonals the go across the floor pan in the middle (ie, the 67" and 158.89" measurements in the top picture).
You can use any year Duster for your Demon's chassis measurements.