I've seen a couple of single rear drive 2-axle rigs for sale that look cool and usually always look like a decent deal compared to a comparable twin screw rig and thought to myself, is there any reason why you couldn't buy one of those and put one of those self-steering 13,500 lb pusher axles in front of the drive axle and use it only when needed? If DOT treated it like two separate axles you'd be up very close to what they allow on a closed tandem group anyway so I wondered if you could get away with doing something like this, or would it be one of those things where every chicken coop in the country would be pulling you around back and hassling you about it if they see the truck is somewhat heavy. I've heard some states are a little chippy about this stuff where they require the weight to be proportioned equally on what they consider a closed tandem group, like with those newer 6x2 dead/lift axle setups that are becoming more popular. Just curious if anybody had any better insight about this.
Adding a pusher axle to a 2-axle sleeper cab?
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Brandonpdx, Oct 18, 2016.
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Go to let's truck.com answers section and you will find out most anything you want about this or other trucking related issues. There are many people on that site running single screw's with lift axle and they are very knowledgable about this topic. If you don't find your specific answer already addressed then you can ask a new question. It is Kevin Rutherfords site, if you have heard him on Sirrius XM.
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Most of the time two axles are as built for a specific task. Or former three axle tractors cut down to two for tax reasons. Too expensive to maintain as a three axle.
That problem of trying to make a two to a three is beyond most people here and frankly it's silly. There are a dozen three axles out there for you to choose from. -
You would be absolutely correct if everyone needed a 3 axle tractor all of the time. There are some people that rarely haul heavy and can get by with a 2 axle tractor most of the time and need that 3rd axle the other times. Sodrel truck lines is a prime example. They are a US Mail contractor who rarely uses the tag axle, saving fuel, tires and maintenance costs. They have been buying single screw tractors with a forward lift axle for 30+ years. I also agree with you that for most people and most single axles this would be a bad idea, but if someone found a single axle with a heavy and long enough frame this is an easy transition to put a forward lift axle.
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The forward lift axle works well for some people, BUT you should get a heavier axle than a 13,500 lbs. usually a 20,000 axle is used and usually the drive axle is a 23,000 lbs rated and has locking diff side to side.
snowman_w900, Ruthless and sdaniel Thank this. -
In the short run I agree it would probably be cheaper and easier just to buy a 3-axle truck. Tons to choose from.
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If you are going to keep it long enough it will pay off.
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Oh, Kevin Rutherfraud? That guy that shills products until they're proven to be ripoffs, or the company is sued? Then he acts like he never knew them? That Kevin?Bean Jr., Ruthless and snowman_w900 Thank this.
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The problem with the 20,000 lift axle is that it's much heavier since you have to either run duals or a big fat (and ugly) 10,000 lb tire that belongs on a dump truck. I've seen 19.5" low-pros that had 6,200-6,300 lb load ratings that would look sharp on Alcoas. The idea of course is to keep it a skinny truck not make it a fat one.
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Yeah the ones I've seen usually have a decent amount of empty frame on the back...like 210-215" long. Maybe an air tank in the way but nothing serious that couldn't be modded. I almost think they do that on purpose so it's an option later.
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