Dual Rear Tire Valve Stems?

Thanks to everyone responding to my questions!

I now understand that this is more than simply adding an extension and that the lasting solution is solid metal stems. I'll likely wait until the spring to have this done since I'm in the process of winterizing the RV right now and it appears the tires have sufficient pressure for the winter. Moreover, it's good to know that one can count on the great folks here to provide timely help. Thanks again. Your help is greatly appreciated.

Another vote for the solid metal valve stems. They will probably be my next purchase before de-winterizing next spring. A couple of months ago I bought new tires for my Class C, and went to CW to get new braided valve extensions for the inside dually tires. Gave them to the tire store so they could install them with the new tires. Took a short trip a couple weeks later and had a FLAT tire on the left inside. Came to find out that the extensions were screwed on too tight which caused the leak. With those kind of braided airless extensions they have to be screwed on just right. Too loose and you can't check pressure or add air, too tight and they will leak. My advice is just spend the money and get it done right.

Tire Man is fine, so is Dually Valve aka BORG.

I found BORG first and have been completely satisfied. Excellent quality, no install issues, and great personal service from Bill FalkenBORG when I (NO fault of the product) ruined an Inner Valve and he rushed me a no-charge replacement.

Just get SOMETHING that:

1. Is Solid Metal

2. Extends to where you can use ANY Air Gauge, ANY Air Chuck

3. Only involves ONE joint, ONE Valve Core

Both products referenced here accomplish all three. You'll go from a miserable tire checking job every few weeks to an easy job every several months. I couldn't believe how much air gets lost with rubber valves, screw-on extenders, etc.

Some kits come with Air-Through Caps. I got six and found the two on the front make ordinary metal stems accessible with our wheel simulators. So I can check all tires with any gauge/chuck and it takes only minutes. I add air only a couple times a year.

If you can outfit your wheels less expensively than BORG or TM, Fine. More Power to You. Just get SOMETHING that does 1-2-3 above, no compromise. Life it too short for tire issues that are SO easily avoided.

Yep learned the rookie way myself. Bought a used MH and the salesguy pointed out "it even has the valve extenders for easy air checks"
Little did I realize all the wheels had rubber valve stems and the "extenders" were those cheap braided ones you see at the local autoparts stores and CW.

We were on a trip back East pulled off the FW into a little town to fuel up. I always do a walk around and even with my bad hearing I heard a hiss coming from the rear duals , bent down and sure enough the braided extender had the "rubber" valvestem tweeked over to the side and it had started to tear the rubber valvestem and was leaking air.
Found a Firestone truck tire shop a few blocks away and had them put metal valve stems on.
They didn't have any of the longer brass ones like mentioned above so had to put the braided extender ones back on.

Next up sold and bought another new to us MH, pulled another rookie stunt, when I had new tires put on I had them put all metal valve stems on,, on another post here I saw someone post up about the metal extenders (not the braided type) so I ordered up them... Yep another rookie mistake.
Being on a fixed income I didn't want to pay the money for the Tire Man ones..
Should of done it... One of the extenders I have to sit there and in about 5 minutes I can get just about 10 lbs of air pressure put in the one tire ;(
Read the post on tire pressure vs weight of MH and was adjusting the pressures.
Didn't like the ride so went back to the pressures I had ....

Spend the money and get the Tire Man ones !! In the long run IT IS WORTH IT ...

I would go to a Truck tire center and have them mount solid stem extensions. They cost a bit more but it is a one time expense. I used the steel flex extensions for many years on many motorhomes. Twice over the many years I had gradual deflation due to wear on the stems. That is not to say the flex stems were bad, rather I did not check them regularly. I have gone for solid stems, not the extenders mounted in the tires.

You do need a dually tire gauge and likewise a dually inflation chuck. These have a sort of angled head on the end, with one port back at an angle (to get to the outer tire) and one forward on the end (for the inner tire). I find the style with the end port straight with the stem, rather than angled, is much more convenient.

With one of these and short valve extenders (1" or so) you should be able to check and air up the tires with only moderate hassle. The fancy extenders are nice, but you can get simple short airless ones that generally work fine too. Make sure your valve stems have a metal shank (as is usual for duallys) or are all metal; rubber valve stems with extenders tend not to last very well.

Dually tires can be rather a pain, truth be told. Ford's love for wheels with lots of tiny access holes doesn't help matters any.

Having solid metal custom formed valve stems also installed on front wheels is best for easy tire pressure checking and filling with beauty discs installed, no need for special chuck or gymnastics trying to make gas station tire chuck seal properly and not let your air out. Cheap screw on valve extenders are not reliable and can cause tires to lose pressure and fail with RV underside damage or possible loss of control. This subject should be a "sticky" on this forum.

The pressure of the outside tire can be checked with a proper gauge where you can reach in and then pull back on the gauge to get a reading - - but the inside dual will need an extender. I have always used extenders and have had them installed by a tire store or by my mechanic. They can be problematic and will wear and leak over time. I just had mine replaced after about 5 years in service due to leaking.

If you go to a commercial trucking tire center they can make you custom brass valve extenders for a reasonable price. Or you can go to one of the online sources and get the same thing for an exhorbitant price.

What is needed is a extended valve stem that will let you quickly check your tire pressure. They add no extra weight like the Extenders would and balancing is no problem.
The best on the market,that are the original,are Tire Man any others are Knock offs.

Chuck is the original designer of these an he has been around for years. If you have any questions just give him a call, he is always happy to help.

The kit looks like This it is for all 6 wheels,they also come with flow-thru valve caps so you don't even need to take then off to check the pressure.

Here is a list of all the products he sells.