GMC and Chevrolet VIN and Model Number Decoders with pics.

[bruceman1968]

Hi ChevyCheyenne71,
On your model number, the 14 is the code for Axel to Cab dimension. I equated that to wheelbase because wheelbase length provides more useful information than a Axel to Cab dimension does. Also to save space and still include all most all of the trucks found on this website, the trucks over 1 ton, or over 133" WB were left off. The decoders only cover light duty trucks, 133" WB or less. In your case the 14 is a Axel to Cab dimension of 84" to 89". Which equates to a wheelbase of 157" Hope that helps and welcome to the forum. Looking forward to seeing more of your truck. Nice looking Dually you have there.