Measured a 1990(no vent window style) dual rear wheel 3500 and in the front it was 74 inches wide outside of tire to outside of tire in the front.I also measure the top of the chassis,under the cab, to the ground and it is 20 inches.I would like the AD cab to sit more at a pickup height compared to a farm flatbed truck height.Does anyone have the chassis rail top height for an AD pickup?If the new chassis I use is lower,I can then mount the AD cab above the frame rails and I could avoid a lot of heartache.
