In my area most dualy trailers have 2-10,000 lb. axles and the tri-axles have 3-7,000 lb axles. Trailers are usually rated by adding the axle capacities and the coupler capacity to get the total capacity. So if it has 2-10,000 axles and a 6,000lb gooseneck couple it would be rated at 26,000 lbs. Then you have to subtract the weight of the trailer to get the available payload. The difference between the 2 is that the tri-axle will be cheaper for several reasons, mainly because since the axles are spaced farther apart from front to back and cover a larger frame section they usually have a lighter frame. They also have 2 less tires and the total cost for 3 axles is less than for 2-10.000's. The disadvantage for tri-axles is they have 2 less tires to carry the same load and they have less square inches of brakes. They are also a lot harder on tires due to the inherent alignment issues with trailer axles. If you can afford it a tandem dualy is a much better deal than a tri-axle setup.
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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