Valve extensions for rear duals

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I don't recommend any extensions at all. Instead replace the inside dual valve stems with full length valve stems. Extenders can and will leak. Here is a site where I got my last ones.  All you most likely need are the inside dual extenders, not a full kit so the cost would be halved. 

http://yourtireshopsupply.com/category/796_831/wheel-size-2224
 
Thanx Sarge! I think those replacement valves will take some down time and mechanical skills, so I will consider installing them after our winter trip.
 
I'm with Sarge.
The long Valve stems are the way to go.
Go to a Truck Tire dealer to have them properly installed. (Like GCR Tire)
After they are installed keep an eye on tire pressure for a while to make sure they are not leaking, and take the vehicle back to fix it, if they are.
It's worth the investment IMHO.

 
I tried a couple of "Extensions" and was never happy.

FInally it was time for new shoes (Tires) and I ordered DUALLY VALVES which were installed.  NICE.
 
I like these:

Alligator V2B Inflate Through Valve Stem Caps

The cap seals any leakage through the valve stem like a standard valve cap, then when a tire chuck depresses the cap it presses on the valve stem's Schraeder valve to let you admit air or check the pressure.

They extend the valve stem just enough to let a straight/angled dual foot tire chuck reach them through the holes in my 16" rim covers and should work even better on larger wheels.  You can also get a matching straight/dual foot pressure gauge.
 
You're better off getting a dual air chuck, IMO. I have 16 inch rims and I have realized that if I rotated my tires, as recommended, that I would no longer be able to top them off. By using a dual air chuck, I am able to do both just fine.

This link is an example.
https://www.amazon.com/Milton-S-693-12-Extended-Reach-Chuck/dp/B004QI1WEA/ref=sr_1_3?ie=UTF8&qid=1540930383&sr=8-3&keywords=dual+air+chuck
 
It sounds like I'm in the minority here, but I purchased a F350 Dually in June of 2017 and put some extenders on the rear inside valve stems.  I am using the Stainless braided type and I made some clamps that fit in one of the holes in the Aluminum wheels with a hole in the center of the clamp where the hose is secured.  I realize they have only been on there about 1 1/2 years, but absolutely zero leaks or issues with them.  I've probably got another 8-10 thousand miles on the tires before I'll need to replace them, and I'll make a determination then whether I want to purchase the rigid extenders or whether I'll just continue to use the braided hoses.  They have worked well so far.
 
I just bought a long chuck after one of my extensions leaked.  Very simple and worked great!
 
xrated said:
It sounds like I'm in the minority here, but I purchased a F350 Dually in June of 2017 and put some extenders on the rear inside valve stems.  I am using the Stainless braided type and I made some clamps that fit in one of the holes in the Aluminum wheels with a hole in the center of the clamp where the hose is secured.  I realize they have only been on there about 1 1/2 years, but absolutely zero leaks or issues with them.  I've probably got another 8-10 thousand miles on the tires before I'll need to replace them, and I'll make a determination then whether I want to purchase the rigid extenders or whether I'll just continue to use the braided hoses.  They have worked well so far.
Click to expand...
:)) I've had extenders for the last 5 years and 50k miles and no problems. Last April I had the tires replaced and transferred the extenders to the new tires and still no problems.
 
Many use 'em without issues. I was not so lucky. But the Duly valves.. They are NOT extensions they are extra long properly bent metal tubes (the inner one has stablizers) I don't even need to remove the simulators (Wheel covers or hub caps is what most would call 'em) to check the rear tires. Front I still have to uncover to test due to size of my paws. but I need to check oil in the hubs anyway so... Same job
 
xrated said:
That would work for filling the tire, but then how do you check for the proper psi?
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Dual chuck gauge. You can get an inflator with built in gauge for as low as $20.

Also, for the guys using long valves, do you rotate your tires? It seems that the extensions would be a PITA when the time comes for a rotation.
 
Rotating the tires on a Class A has never been required. I have had 4 different rigs, and as long as an alignment is maintained for the steer tires, they just roll along. Rotating the tires on a semi is also not common, unless there is a problem with a tire, then they would be swapped side to side.  At least I have been told. 

It also could be because RV's do not generally run anywhere near the amount of miles that semi's do. Semi's wear out tires, RV tires age out.
 
Dragginourbedaround said:
:)) I've had extenders for the last 5 years and 50k miles and no problems. Last April I had the tires replaced and transferred the extenders to the new tires and still no problems.
Click to expand...
Ditto, ten years and second set of tires. No issues.
 
SargeW said:
Rotating the tires on a Class A has never been required. I have had 4 different rigs, and as long as an alignment is maintained for the steer tires, they just roll along. Rotating the tires on a semi is also not common, unless there is a problem with a tire, then they would be swapped side to side.  At least I have been told. 

It also could be because RV's do not generally run anywhere near the amount of miles that semi's do. Semi's wear out tires, RV tires age out.
Click to expand...
It isn't required for any vehicle, so to speak. But I was doing some research and saw in many places that it is still recommended by some MH manufacturers and some tire manufacturers. Many people do not put on enough miles for it to matter, apparently.
 
ChipSmith said:
Any preferences on type or brand of valve extensions so that you can reach the inside dual?
Click to expand...
ChipSmith
I've been using the link Cat's Eye? Equalizers on my rear dually tires since 2001, (for over 125k miles).
https://www.linkmfg.com/products/trailer-suspensions-products/cats-eye/
 
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