There is about 5 inches or one valve cover in the cab. It sits back just like it did in the Dodge 2500 truck.My plan was to have it about three inches less but it fit better like it is now.I used the original throttle cable to cut the fuel off and kill the engine.The steering shaft came out of a Dodge 1500.It was the correct length to use the original steering shaft connected to the Chevy steering box.The Dodge power steering pump lines bolted right up to the Chevy pump also.