Need Your Help - Trunk Lid Torsion Bar Alternative
Mopar # 2765375 is a "special tool", normally available to dealers only, but may easily be fabricated by using a tape measure.
An assistant is needed. Have the assistant hold the trunk lid at maximum elevation, and measure from the trunk floor near the rearmost area, to a point just inside the rear edge of the open trunk lid, and machine a rigid cellulose fiber strut to this dimension.
It is best to find a cellulose material not too stiff, or too flexible, but with some flexibility.