CHECKING FRAME ALIGNMENT
When checking a frame for
misalignment in case of damage, the
most efficient method is "X" checking with a tram from given points on
each side rail.
Figures 1. 2, 3, 4 and 5, reference points are indicated—"A," "B," "C" and "D" on
frame side member.
making checks on all conventionally sprung models, the tram points should be set
at the renter of the
lubrication fittings. When checking the front section of independent
suspension models, the check should be made from the center of the front bumper bracket bolt to the
center of the body bolt at the
front body mounting bracket, shown by lines "AB" in Figs. 1 and
checking any section of the frame, the
measurements should agree within 5/16". If the measurements do not agree within the above
limit, it means that
corrections will have to be made between those measurement points that are
dimensions between the spring hangers, both front and rear, are also
shown on the illustrations. In
addition the height of the front spring horns with reference to the top of
the frame side member is shown
on the truck model illustrations.