volvo's are also equipped with that setup. my cousin has a triaxle grain truck with a front lift pusher axle. pos is worthless empty. all of the weight hangs in front of the steer axle and the front wheels are an anchor. can you say stuck?
I'm not sure I completely agree but maybe its a play on Words.
I drive a log truck with what is known by International as a "set back' front axle. The more common configuration
has the front axle 'set forward' ---- just about as far forward as you can and not have the tires hit the front bumper.
Indeed quite a few truckers 'bob' off the ends of the front bumper so that if they hit a deer or something it won't bend the bumper back a couple of inches and stick it into the tire--- causing them to lose steering.
Ifyou take a look at my International, it is set back about 18 inches. It's a configuration often used
where you want to get some extra weight on the front wheels. IN specing out a truck there is always a conflict between
getting as much wheelbase as you can for the weight / bridge formula,--- and also being able to get the weight far enough forward. This truck is made with a 14,000 lb front axle and I run 12 inch tires on the front. I then put the booster axle
behind the drivers, instead of the more conventional position in front of the drivers. This way the booster axle
transfers some weight to the front axle. In Oregon this allows me to get the truck GVW up to 54,000 lbs.
This is a fairly uncommon configuration but now doesn't make much difference here in Oregon.
Oregon allows double trailers, and in the 'rocky mountain doubles' configuration I can GVW to 105,500 and the length
limit is 68 feet of 'hauling area'. The length of cab/engine etc in front of the bed is unlilmited so this 18" more or less
stickingout in front of the front wheels changes nothing.
With a single trailer, my gross is generally limited by my wheelbase of the last 5 axles. The problem with log hauling
is that you can't get the last 5 axles quite long enough because the logs are only 41 feet long. You just need
a truck wheelbase that is 'long enough' and this one is. I have axles enough for 88,000 lbs, but I"m usually stuck
at 86500 with a single trailer because of the last 5 axle group.
This is the 105,500 lb configuration which works I believe in Oregon, Washington, ID, MT. and I think WY. and CO.
but not in California.