Quote Originally Posted by Matt167 View Post
Longhorn box is 8.5" with the extra length visable with a seam near the bed front
Matt's close. The Longhorn is based off a 133" 1 ton frame and the bed is 8' 6" long. GM basically lopped off the front of the bed and added in a new section with a seam between them. Longhorns were only offered with the wood floor too. Why they didn't fill in the seam, IDK. The seam is kind of janky for a production vehicle. Since GM wasn't building 4x4 1 tons back then, that is why none of the Longhorns were available with 4x4.