I have a 2001 international dt466 with 119,000 miles and I believe it's 36 feet, not sure, it was the longest I could find in Indiana. It's a winter project I have been working on for about a year when it's not 75 degrees or higher - I have little tolerance for excessive heat haha but I have insulated all new floor stripped down to the steel bottom and wire wheeled to a shine then coated with rust proof paint, insulated walls up to the bottom of windows, boxed in and insulated rear engine Bay Area, will be a nice bed spot, about to cover windows so I can build up walls to the ceiling now. I'll try to post some pics later I have quite a few of all the different stages, lots of stuff I haven't seen in detail before