Dually valve stem extensions

[JasonW]

I upgraded to a dual tandem trailer a few months ago and would like to upgrade the valve stems to use a regular air chuck.

I have tried two different “dually” air chucks at first and neither worked for the inside tire due to hitting the rim. I have also tried the hard extensions but they need a slight angle to go straight through the outside rim. Thin line between bending them to fit and snapping them. All rims have metal valve stems that offer no flex.

I have the u-shaped valve stems on the outside tires and those work fine, just need something for the insides. Only other ones I see are stainless braid.

Anyone have a solution to this?

 

[Daren Todd]

I use something like this on the dual tires on my service and delivery trucks at work. They sell them calibrated for different tire pressures. And with one quick look you can tell if you are good or have an issue.

They have internal check valves, so if one tire is at a lower psi, that tire will inflate first until the tire pressure reaches the same as the other tire. Then both tires will inflate evenly.

The added bonus is one easy to access valve stem.

 

[JasonW]

Those may be the ticket but for $300 this will be put on the back burner.
Looks like they mount on one of the wheel studs?

 

[North Idaho Wolfman]

You can get flexible extensions that they use for test plugs for plumbing.

 

[jimh406]

Sometimes my tire shop don't align the rims correctly. It shouldn't require a special tool if they are aligned correctly.

 

[McMXi]

I upgraded to a dual tandem trailer a few months ago and would like to upgrade the valve stems to use a regular air chuck.

I have tried two different “dually” air chucks at first and neither worked for the inside tire due to hitting the rim. I have also tried the hard extensions but they need a slight angle to go straight through the outside rim. Thin line between bending them to fit and snapping them. All rims have metal valve stems that offer no flex.

I have the u-shaped valve stems on the outside tires and those work fine, just need something for the insides. Only other ones I see are stainless braid.

Anyone have a solution to this?

Good timing on this thread. I bought a 2024 F-450 recently and am picking up a new Kaufman 30ft 25k gooseneck with dual tandem axles on June 2nd. I did something clever (a friends suggestion) with the inner valve stems back in 2001 when I bought my first dually, a Super Duty F-350 7.3L, but I can't remember what I did. It was a mod that made checking tire pressure and adding air a lot easier.

 

[North Idaho Wolfman]

I just looked a little deeper into this, there are a ton of cheap solutions:

https://www.amazon.com/UBOG-Extension-Accessories-Stainless-Extenders/dp/B0DG2NS657?gQT=1

https://www.amazon.com/VOTNMIC-Extensions-Flexible-Stainless-Extenders/dp/B0DNS5ZD61/ref=asc_df_B0DNS5ZD61?mcid=23a0bcab9cd43866b9264bc0acf7f5b1&hvocijid=15962702334628987751-B0DNS5ZD61-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=721245378154&hvpos=&hvnetw=g&hvrand=15962702334628987751&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9029659&hvtargid=pla-2281435179738&th=1

https://www.amazon.com/Gosknor-Extension-Flexible-Extenders-Motorcycles/dp/B0DPF3TH17/ref=asc_df_B0DPF3TH17?mcid=bb90021a640d34529c387a754fe337a1&hvocijid=15962702334628987751-B0DPF3TH17-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=721245378154&hvpos=&hvnetw=g&hvrand=15962702334628987751&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9029659&hvtargid=pla-2281435180258&psc=1

 

[McMXi]

I just looked a little deeper into this, there are a ton of cheap solutions:

I've made quite a few purchases from etrailer.com over the years and they have a number of products that make it easier to check and inflate inner tires on dually set ups whether on a truck or a trailer.

https://www.etrailer.com/Accessories-and-Parts/TireMinder/TM97SR.html

One of your links reminded me of the upgrade that I made in 2002 to the inner rear wheels/tires of my F-350 dually. I added brass 90° valve extensions and bought an extended air chuck and pressure gauge that I still have. My friend in Hawaii who has a very successful towing and recovery business, and a lot of experience with big trucks, suggested I change out the Ford plastic lug nut covers for individual stainless steel covers. He's a great guy but he sure cost me a lot of money in upgrades back then. But I'll have to look into doing that again on the F-450.

 

[JasonW]

Ordered some of the stainless braid versions for now. The equalizers will be on the wish list though.

 

[North Idaho Wolfman]

Ordered some of the stainless braid versions for now. The equalizers will be on the wish list though.

CAution:
Cheap equalizers, can cause both tires to go flat if one tire fails.

 

[JasonW]

CAution:
Cheap equalizers, can cause both tires to go flat if one tire fails.

Correct. I was referring to the ones posted above that has check valves.