I have a 85 Mack superliner that i have been restoring sitting on 307 in wheelbase. I use it on a daily basis hauling chips to the paper mill . I dont know why i haven't bought something newer but its mine and gets compliments all the time. I had a fleet of 7 including 3 heavy haul trucks and have sold down to just my truck a one trailer. Trucks and oil and antifreeze run through my body.