Chassis Requirements: New F550 4X4 CREW CHAS CAB XL TRIM 60 CA. Dual Rear Wheel (DRW) 203 INCH WHEELBASE 6.7L POWER STROKE V8 DIESEL 10-SPEED AUTO TORQSHIFT 4.10 RATIO NON-LTD SLIP AXLE 18000# GVWR PACKAGE PREFERRED EQUIPMENT PKG.660A 50 STATE EMISSIONS 40 GAL AFT OF AXLE FUEL TNK 410 AMP DUAL ALTERNATOR DUAL BATTERY REAR VIEW CAMERA & PREP KIT 120V/400W OUTLET AIR CONDITIONING -- CFC FREE AM/FM STEREO MP3/CLK 225/70R19.5G BSW ALL POSITION FRONT LICENSE PLATE BRACKET 50 STATE EMISSIONS VINYL 40/20/40 SEATS BLACK RUNNING BOARDS or 6” OVAL SIDE STEPS MEDIUM DARK SLATE OXFORD WHITE CT-FBFE-1000 Warner Open, Rescue 108”, DOT OPTION 3M REF TAPE, GRADE 983-10 2X 150 FT, WHITE (NOT CUT) 30.00 OPTION BLUECELL SMA FEMALE TO TNC MALE COAXIAL ADAPTER/CONVERTER 1.00 OPTION DOT FITTINGS AND COUPLINGS KIT 1.00