Ok, here are the results from today after double-checking all markings of frame features and double-checking all measurements for said frame features.
(1) Diagram 33.92 inches to bolt centerlines measures 33.94 inches.
(2) Diagram 26.42 inches between axis centerlines measures 26.44 inches.
(3) Diagram 44.06 inches between right and left hole L centerlines measures 44.00 inches.
(4) Diagram 37.50 inches between holes C & D centerlines measures 37.50 inches.
(5) Diagram 51.73 inches diagonal measures 51.25 inches using edge of hole D as shown in diagram. I measured the diameter of hole D and it measures 0.88 inch using digital calipers. The 51.25" measurement plus the 0.44" radius of the hole yields 51.69 inches which is quite close to the diagram measurement of 51.73 inches.
(6) Same diagonal and hole measurement results as "(5)" above, but using hole C instead of hole D.
(7) Your requested measurement from torsion bar cross member to center of aft K member bolt measures 41.00 inches; left and right sides.
-------- DeltaV
(1) Diagram 33.92 inches to bolt centerlines measures 33.94 inches.
(2) Diagram 26.42 inches between axis centerlines measures 26.44 inches.
(3) Diagram 44.06 inches between right and left hole L centerlines measures 44.00 inches.
(4) Diagram 37.50 inches between holes C & D centerlines measures 37.50 inches.
(5) Diagram 51.73 inches diagonal measures 51.25 inches using edge of hole D as shown in diagram. I measured the diameter of hole D and it measures 0.88 inch using digital calipers. The 51.25" measurement plus the 0.44" radius of the hole yields 51.69 inches which is quite close to the diagram measurement of 51.73 inches.
(6) Same diagonal and hole measurement results as "(5)" above, but using hole C instead of hole D.
(7) Your requested measurement from torsion bar cross member to center of aft K member bolt measures 41.00 inches; left and right sides.
-------- DeltaV