I wasn't aware of the website and thanks for the info. Reason for my question is I want to start a project of putting the 46 COE cab on a newer chassis. I have a donor chassis from a 1978-79 Chevy C60 1 1/2 ton truck. Just looking at the front of the donor chassis I'm thinking the front axle is too wide and that the tire are going to stick out of the fenders. I want to try and use a newer model chassis with the I-beam axle but have the same measurement of the original factory chassis had.