COMMERCIAL-GRADE FRAME
With proven, brute-strong frames, Ram Chassis Cabs are engineered to handle today's variety of available commercial upfits. The frame is the same size, allowing you to swap your current upfit to a new truck.
Commercial Grade Frame
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- Rear frame strength
- The frame, constructed of high-strength steel, is rated at 50K PSI to carry your upfit's weight and more.
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- Frame rail spacing
- Industry-standard spacing remains unchanged, so it's easy to install your current upfit or a new one.
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- Flat frame rail
- The flat frame top surface with all chassis components mounted below eases upfit installation.
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- Kick-Up
- Kick-up design creates a flat rear frame surface for easier upfit conversions.
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- C-channel & Wiring
- Frame design keeps components and wiring accessible for future modifications, yet out of your upfit's way.
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- Wheelbases

Ram Chassis Cab trucks are available in numerous wheelbases to accommodate a variety of payload, towing and upfit needs.
Two Regular Cab wheelbases for the Ram 3500: 143.5 inches, 167.5 inches.
One Crew Cab wheelbase for the Ram 3500: 172.4 inches.
Four Regular Cab wheelbases for the Ram 4500 and Ram 5500: 144.5 inches, 168.5 inches, 192.5 inches, 204.5 inches.
Two Crew Cab wheelbases for the Ram 4500 and Ram 5500: 173.4 inches, 197.4 inches.

