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131 0205 Proj01 Z

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The foundation for our '01-bodied Suburban is actually a '73 Chevy pickup truck frame that's been reinforced with a cage made of 0.135-wall chromoly tubing. We chose this frame so the truck could be registered as a pre-smog vehicle in order to run the new 8.1L engine we wanted. Off Road Unlimited knew early on that the stock frame would need a lot of work to mount the engine and suspension we wanted. So they chopped off the rear half of the frame and added a new C-notch frame section made from 4x4 square tubing to give the heavily gusseted 14-bolt room to travel.

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