REPAIR OF FRAME STRUCTURES
applied loads and road input by flexing and twisting. The
9-1. Description and Data.
main flex members are the siderails. Crossmembers, at-
The truck frame provides support for the body mounting
tached to the siderails to form the "ladder-type" frame, min-
and all chassis components. It also carries the payload while
keeping deflections at a tolerable level. The frame reacts to
Figure 9-1. Frame Dimensions, 4X4 Model.