Changing air pressure

[homefor2]

Does anyone else find it a pain in the butt to change the air pressure when taking the camper off and on? I run 75 psi with the camper and 40 psi empty. Letting the air out of 4 tires (DUALLY) takes a long time. If I leave it at 75 and run empty, it's like riding a buckboard. Is there an easy way to deflate that I'm missing?

[Redsky]

When the camper is off my truck I put a 200# fiberglass cap/shell on the bed and the cap has a 120 lb. roof rack for my kayaks. That weight tames the truck at the rear considerably. I leave my tires at the same pressure all the time.

[Farmerjon]

PRodacy wrote:


Just curious about the ride. I notice that you have a Ram. I have a 2012 GMC 4x4 dually and the ride is fine with 70psi - no need top reduce the pressure when the camper is off. Think its a difference in the spring rates? we have a 3/4 ton Ram at work, and its a lot rougher riding than my GMC. Maybe Ram is just stiffer? How does Ford ride with full pressure in the tires?

We have a 2000 F350 4x4 dually and we often leave the pressure up at 80psi after the camper is off especially if we plan on hauling something very soon and we don't feel the handling is rough at all.

[kawa900stx]

Thats a nice homemade rig there misminoff, wish I would have seen that earlier. I happed to buy one of these that I found to do the same thing. It wasn't too expensive either.

msiminoff wrote:

Is there an easy way to deflate that I'm missing?

I made a simple assembly that allows me to inflate/deflate two tires at the same time while maintaining equal pressure, ceteris paribus, in each tire. Of course my setup is for a SRW truck, but it could easily be reconfigured for a DRW. Here's a pic…



Note that the tire chucks I used are the lock-on type so there's no need to hold them in place while inflating/deflating.

Cheers,
-Mark

[PRodacy]

I highly recommend the ARB deflators. It allows you to read the actual pressure. The staun and similar units depend on the atmospheric pressure to regulate what's in the tire. If you change altitude, you'll get different amounts of air in your tire. For example, I initially had Staun and set it at home (5500 ft) to 15 psi for my Jeep. When I got to the mountains (approx. 11,000 ft) they let the pressure down to about 8 psi. Back home, they again set the pressure to about 15. If you always change the pressure at the same altitude (you house?) they're fine. Otherwise, go with the ARB. They're much faster because the lock onto the valve stem, then actually pull the valve stem out to release the air. One the desired pressure is reached, just turn the knob and the valve stem is reinserted. Very quick and easy.

Just curious about the ride. I notice that you have a Ram. I have a 2012 GMC 4x4 dually and the ride is fine with 70psi - no need top reduce the pressure when the camper is off. Think its a difference in the spring rates? we have a 3/4 ton Ram at work, and its a lot rougher riding than my GMC. Maybe Ram is just stiffer? How does Ford ride with full pressure in the tires?

[Boatycall]

As an avid Jeeper and quad'r, this tool is extremely fast and indispensable when it comes to air'ing down. It removes the valve stems for a very high-speed air down---

ARB / Currie air down tool

[homefor2]

MARKW8 wrote:
75# seems like more than you need on a dually. My door sticker shows 60# for the rear on my GMC. Thats for maximum load on the rear.

Mark

You are right. I made a mistake. Mine actually should be 65 and that's what I had it set at.

[msiminoff]

Is there an easy way to deflate that I'm missing?

I made a simple assembly that allows me to inflate/deflate two tires at the same time while maintaining equal pressure, ceteris paribus, in each tire. Of course my setup is for a SRW truck, but it could easily be reconfigured for a DRW. Here's a pic…



Note that the tire chucks I used are the lock-on type so there's no need to hold them in place while inflating/deflating.

Cheers,
-Mark

[MARKW8]

75# seems like more than you need on a dually. My door sticker shows 60# for the rear on my GMC. Thats for maximum load on the rear.

Mark

[kohldad]

Off road, I along with most of the club used staun deflators. Since four came in a pack, I had two set for normal off-road (20psi) and two set of hard-core (14 psi). One thing we found out, is make sure you have an air supply available when airing down since every once in a while, one will stick. (Maybe one in 1,000 air downs).

I've been thinking of getting another set with higher max pressure to set my truck's unladen pressure. Figured the convenience would be enough to drop them down more often than running at 80psi all the time.

[deltabravo]

More tire deflators

[deltabravo]

Marshfly wrote:
The ARB deflator is super fast and precise.

ARB Deflator

[Marshfly]

The ARB deflator is super fast and precise. You can deflate too any pressure as it has an integral gauge. The Staun and similar work well is you are only ever going to deflate to a specific pressure. For me, the ARB works better. As I can deflate to daily driving pressure when the camper is off and still deflate to off-road pressure if needed quickly with the same tool. I used to use the chuck with the hose attached but this is orders of magnitude faster as it removes the center of the valve but keeps it captive so you don't lose it.

[tony_lee]

deltabravo wrote:
The instructions make no reference to what the max pressure is that those things can be set to.

Staun deflaters are another brand and they have two or three different ranges to suit different classes of vehicles.

http://www.stauntyredeflators.com.au/how_to_deflate.php may be similar in operation to the ones you refer to

[deltabravo]

The instructions make no reference to what the max pressure is that those things can be set to.