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Old 09-14-2021, 05:40 AM   #15
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Location: Crossville
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Originally Posted by scbwr View Post
One piece metal stems are the way to go. I had multiple issues until I replaced mine with a kit from:

Now, my stems are very stable, and routine pressure checks and inflation tasks are easy.
I'll second that recommendation. These are the ones I bought for my E450 (also work on the E350) Very happy with them. There are some downsides to them as stated on there website though.
Duallyvalve stems DO NOT work with INTERNAL TPMS. Duallyvalves can work with External TPMS that go on the end of the valve stem.

Having Duallyvalves makes it difficult for the tire shop to balance your inner tires on a standard machine due to the long inner valve stem. Duallyvalve is compatible with internal Balancing Compounds.

Tire Rotation
Having Duallyvalves make it difficult for the tire shop to rotate your tires. Inner stems, Outer stems and Front stems are all different. You can rotate Inner with Inner, Outer with Outer and Front with Front.
2019 Thor Chateau 28Z 2018 E-450 Chassis W/ V10
4 Wheel tow a 2021 Ford Ranger Lariat W/ Blue Ox Base Plate and Stay-IN-Play DUO Brake system.
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Old 09-14-2021, 06:04 AM   #16
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Join Date: Oct 2019
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Originally Posted by smiller View Post
I also have a TPMS system that notifies me if any leakage. And when I was using extenders it was constantly notifying me of leakage

I could get it to stop for a while (maybe a few months at a time) if I fiddled with everything, just got tired of it.

Sorry to hear, I have been using this at least a year or more with no issue. Wonder what the difference is? These are the extenders I used and had zero confidence they would be ok when I installed them.
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Old 09-14-2021, 06:31 AM   #17
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Posts: 321
Just ordered 2 new HE-393 6 inch valve extenders with stabilizers from Haltec. Newmar wanted $61 two for $39.
Doug and Renee Tallman
2014 Newmar Dutchstar 4369
2018 Chevy High Country
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Old 09-14-2021, 08:12 PM   #18
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Tire valve stems and extenders.....

For those that want a total protection/service option. I have the TST 507 internal sensors, DuallyValve solid metal stems and centramatic wheel balancers. Use Alligator V2b double seal valve stem caps that let me manually check pressure with out removing them. This setup lets you rotate tires and tires stay balanced even if you happen to pick up some mud. Been using for over 5 years with no problems and batteries are still working
2013 Coach House 261XL QD Banks
SafetyPlus steering, Centramatic, TSTint TPMS, Dish
Sacamento, CA
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ems, tire, valve

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