The CF trucks were real basic- at one time they used a switch instead of an ignition key! They were kinda like Guzzis- even used round headlights long after all the other trucks went to rectangular ones. The air tag saves on fuel, and it'd be nice with a lift so you could raise the tag axle when running empty. As for the valve, the pressure is critical... A little experimentation and you'll figure out the right setting. IIRC, SD will sell you a permit for an axle air pressure control in the cab, think it costs less than $100. MN bans cab controls completely, in case you visit our land of 10,000+ lakes and a few loons. The engine is probably a Cat 3406, nothing wrong with them. Does it have an air starter? The FLD cab is quite durable, I know of one big trucking company that stocked up on them when Freightliner ended production.
Best of luck with the new truck!
Posted on Apr 15, 2012, 3:13 PM from IP address 184.108.40.206