Figure 9-2. Frame Dimensions, 4X2 Model.
9-2. Frame Inspection Procedures.
(1) Place a plumb bob at several points along one side-
rail, preferably at crossmember locations. Mark the floor at
A distorted frame will affect front wheel or rear axle
the points indicated by the plumb bob.
alinement, causing excessive tire wear, mechanical failure in
the power train, window glass cracks, and problems opening
(2) Locate the corresponding points on the other side-
the door. Always check frame alinement on a level surface
rail and mark them on the floor in the same manner.
with the tires properly inflated.
a. Horizontal or Diagonal. Inspect all frame parts for
visible damage before proceeding with frame alinement
checks. Replace damaged parts as necessary. The following
procedure determines frame distortion. Refer to figure 9-3.
Figure 9-3. Alinement Marking.