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07-22-2022, 01:53 PM
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#1
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Junior Member
Join Date: Sep 2021
Posts: 4
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Tire pressure extenders
Hey guys,
Took the rig down to Les Schwab to put on Inside dual tire pressure extenders and this is what they did. Easy to reach but is it safe just coming through the outside dual or should it have a bracket of some sort that I have seen on semi's? thanks in advance. gk
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07-22-2022, 04:21 PM
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#2
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Senior Member
Join Date: Sep 2009
Location: Central Indiana
Posts: 1,422
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There are large rubber grommets made to fit the hole. Some are made with no hole or hole near wheel center or near rim. I never will use valve stem extensions. I had 10 inch one piece valve stems installed on the inside duals. I have seen too many extensions fail causing deflation or tire damage.
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07-22-2022, 05:09 PM
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#3
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,982
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Quote:
Originally Posted by mrboyer
There are large rubber grommets made to fit the hole. Some are made with no hole or hole near wheel center or near rim. I never will use valve stem extensions. I had 10 inch one piece valve stems installed on the inside duals. I have seen too many extensions fail causing deflation or tire damage.
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I agree Ross.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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07-22-2022, 10:18 PM
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#4
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,125
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__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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07-23-2022, 05:10 AM
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#5
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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Normally, there is a stabilizer installed to keep the extension from moving around. Find out who makes the steel/aluminum wheels and check to see what they recommend.
I have been using valve extenders for 22 years now, and I have never had a problem with them.
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Good Luck, Be Safe and Above All, Don't Forget To Have Fun 
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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07-23-2022, 05:16 AM
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#6
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Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: On the road
Posts: 2,126
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Happy Trails, 
06 Dynasty Countess III ISL//3060
07 Hummer H3
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07-23-2022, 12:13 PM
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#7
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Junior Member
Join Date: Jul 2019
Location: N Florida
Posts: 13
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I quit using the valve stem extenders because they eventually leak and you have no way of knowing on your inside dually without checking pressure. I use metal valve stems with TPMS and check tire pressures with it or remove the TPMS and check each tire individually. I have not had issues with tire pressure since removing the extenders. We quit using them at the fire dept years ago.
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07-23-2022, 12:58 PM
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#8
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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I haven't had an issue while using valve extenders in the past 22 years. I have had snow and ice packed all around the valves and between the tires and still no problems. Buy good quality extenders, and install them correctly. Do not over tighten them (you will damage the small rubber seal) and do stabilize them.
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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07-23-2022, 01:02 PM
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#9
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,713
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The nut and the length of the thread end strongly suggests it is designed to have an outer mounting bracket that they didn't install. Probably no good place to fasten it, but they should have used a different extension or asked your permission to rivet a bracket to the wheel liner. If a flex extension more than a few inches long is used, it really needs to be fastened securely. Solid metal extensions on metal valves can be longer - most large trucks use them.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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