SO-CAL Model A-style Quick Change Rear Crossmember was developed exclusively for SO-CAL, this Model A transverse leaf spring rear crossmember has beautifully stamped sides welded to a center strip and finished to the highest level of quality. The crossmember, which faithfully follows Model A dimensions, is used in the SO-CAL Step-Boxed '32 chassis as well as the new SO-CAL Model A chassis.