Front Cross-Member: Description and Operation
FRONT CROSSMEMBERDESCRIPTION
The front suspension crossmember must be properly installed to achieve design camber, caster settings and wheel stagger. The crossmember can be installed out of position on the frame rails due to its design. Bolts and cage nuts hold the rear of the crossmember to the frame torque boxes. Bolts and J-nuts hold the front of the crossmember to the frame rails. No designed in locating device is used to position the crossmember in the vehicle. Before removing the crossmember mark the frame torque box around the rear mounting location to aid installation. A crossmember that is removed during service must be installed in the same position from which it was removed. To verify that crossmember is in the proper position, refer to the dimensions provided. Front end dimensions are gauged from the principal locating point (PLP) holes located under the frame torque boxes rearward of the front wheels. After removal and installation of the crossmember is performed, verify that front suspension alignment is within specifications. If camber, caster settings and thrust angle are not within specifications, loosen and reposition crossmember to bring suspension within specifications.