M530V (kit), M530U (assembled) 3.995 long NARROW GpF/OMB/HB chassis.
M746B (kit), M746A (assembled) 4.120 long GpF/OMB/HB chassis.
M746F (kit), M746E (assembled) 4.340 long GpF/OMB/HB chassis.
M746D(kit), M746C (assembled) 4.610 long GpF/OMB chassis.
M530L Lightweight 4.355 long GpF/OMB/HB chassis without pans. TQ Hillbilly Nat's. $50.96 ea.