I ran Jimmie cab overs with 318's and 318"s with a blower they called a 350. I am near deaf today with those screaming Jimmie's. They did their purpose.. Overall lengths were shorter then, than, some of the trailers alone that are on the road today. My last tractor was a 244 wheel base IH with the 60" walk in sleeper, now that was heaven.. I had just got my first flat floor box at 48ft compared to almost 17 years of pulling a single drop deck box. ( I hauled computers and military trade shows for a van lines agent) Both were a blessing compared to what we were required to use all the previous years.. If my legs didn't go real bad then, I had planned another three in trade shows, would have brought me a few months over 20 years, then transfer over to a tri-axle. Guess it wasn't meant to be. Winters were getting harder to get through.. At the time, most all the van lines got in on computer hauling, less work available, cost were being driven down to the point is wasn't worth taking the cut rate loads, and I was lucky.. I worked the local highway dpt each winter season running their machinery and plows. At least I could keep the rig in the yard through winter.. Most either lost their rigs or went on with the cut throating and lost them in early spring anyway.. Probably another blessing in disguise was the physical loss use of legs for 3-4 years, that knocked me totally out of trucks... By this time, deregulation was wreaking havoc on most companies and feight was probably the cheapest ever known to man at that time (mid 90's).. But, like all of us here, do your thing and move on to something else...