When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
i dont have the cab length ones , but before i ordered mine i called up n-fab and asked what the difference was, cab vs wheel to wheel , and the rep said it was about 6"
hopefully someone with them will chime in or you can always eye ball it