calewjohnson
Sep 23, 2013Explorer
Axles
Picked up a new trailer yesterday, Outback 323BH... Great trailer, took it out for a shakedown cruise last night, and everything was great...going to go out again this next weekend....this week thoug...
ktmrfs wrote:jmtandem wrote:GVWR (lbs/kgs) 9000 / 4082.4
If your gross is 9000 pounds, then you will have about 1170 on the tongue (13 percent of gross). Be sure to get spring bars that are up to that amount. That leaves 7830 or so on the axles. If your axles are 4400 pound axles you have 8800 pounds axle capacity and the math aproximately says that leaves around 1000 pounds for all your stuff and water. Water is 8.3 pounds per gallon.
It becomes a little more than just changing the axles. Tires and springs are an issue as well. You will need to be able to have the carrying capacity in the tires to match the new axles, wheels to accommodate the new tires/pressures and probably upgraded springs.
remember, with a WD hitch you transfer some TV axle weight to the trailer axles. In my case, with 1400lbs on the tongue, I add about 400lbs to the trailer axles combined. So for the above case estimate that you would end up with about 8200 on the axles, or 4100 each axle. Close but under the axle rating and even more margin with the tires.