The kit for my suspension is $525. On my suspension it does require welding. That's in line with prices I have seen online. There's about another $365 in misc fittings, hose, the control valve, the polymer box the control valve will be inside of, the brake shutoff - everything needed to hook it up. This would be manual air valve, not in the cab and no electronic controls. There is a very good older thread in the garage section with details on plumbing these kits.
check it out - new equipment
Discussion in 'Ask An Owner Operator' started by rollin coal, Jan 17, 2015.
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That's not too bad. If you don't have one, it would be a great time to put in a weight gauge.
rollin coal Thanks this. -
That would be nice to keep me from overloading the single. I have one for the drives. At 34,000 on the drives is about 72 psi on the gauge. How/where to tap the gauge on the fixed trailer axle?
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rollin coal Thanks this.
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All my trailer suspension gauges are just T into the airline between the bags and line run to a gauge, holesaw a spot for gauge and voila.
Polymer box?? Not polished alum/stainless? Cmon -
I'm paying the shop to do this one. They've done several before and I don't have a welder. Aren't all 4 air bags together? Does that matter? The gauge works with one axle up or both down?
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The gauge is T in on the set of bags that's always on the ground (mine is rear axle plumbed, and on occasion I've realized I left the axle dumped when I walk around...) if you're lifting one set of wheels, the air will be exhausted from that axles set of bags. So your suspension dumps the air on those bags, while inflating 2 bags that are on the hinged bracket/fixed bracket that causes the axle to lift off the ground.
rollin coal Thanks this. -
The gauge will give you the psi/weight on the axle thats on the ground. My one trailer 80psi is approximately 20k on that axle (both are spread axle w arch, which tells me the front axle ought to be pretty close to the same) the other at 72psi is 20k, but that one doesn't have a lift.
If you're having someone do it for you, as soon as you see it complete you'll get it. Fairly simple idea.rollin coal Thanks this. -
Ok I get it now.
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this is the control unit i installed on my pusher axle its a silent drive unit. it is electric not manual but fully self contained and weather tight. supply line runs in then two outputs one for lift bags the other two for the load bags. witch then plumbs to two quick release valves that come with it. also comes with a switch and mounting brackets. the switch is simple ground/ power. put power and ground to the wires it and it lifts kill the circuit and it drops.
just another option for you comes with basically everything needed to install minus the air lines themselves and a couple fittings your need to make the connections to the quick releases and the airbags themselves. and is already in a weather tight sealed box. the price was a little over 400 after taxes ect out the door.
seems how i installed a in dash switch i also did not use the provided toggle switch and opted for a factory style rocker.
as far as plumbing on trailers i have seen both a regulated setup to set the pressure you want on your drop manually and iv also seen where they just pull off the same leveling valve off the other axle. both work but on a trailer for a tandem trailer i think i would just opt for tied into the leveling valve. on tridems and quads used for bridge its kinda nice to control it off a pressure regulatorrollin coal Thanks this.
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