Hey 57p-up, I knew it was here in my paper files,And I remembered the truck it's COE Peterbilt that was made for 3-5 years. Access to the motor and needed components for service is done in the front it all opens up, Its also more aerodynamic then a reguler COE. I don't remember if the floor was flat in this model. I also found a good seal and design for between the cab and coach. Get your floorplan together for the build. I found two (2) of these trucks. One of them is outstanding inside & out.