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12-23-2017, 09:28 AM
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#1
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Senior Member
Join Date: Nov 2017
Location: Longwood
Posts: 1,263
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Which valve stems do I have?
Sorry for what might be two stoopid questions, but here goes:
First, I'm looking to add a TPMS that has the valve screw-on, non-pass through sensors. In reviewing past posts and web reviews about this it appears I might need metal tire valve stems. Is this true? I haven't a clue.
Secondly, is there an easy way to determine if I have rubber or metal valve stems? The trailer is brand new and is equipped with Jayco stock Goodyear tires.
Thanks and Happy Holidays!
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2018 Jay Flight 29RLDS
2019 F250 FWD gasser
ΣΧ, UCF '78
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12-23-2017, 09:44 AM
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#2
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Senior Member
Join Date: Dec 2010
Posts: 1,645
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I have a TST system, and yes metal valve stems are required due to the weight of the sensor; a rubber valve stem is somewhat flexible - the concern is that the extra weight of the sensor would cause the stem to wobble and eventually fail.
A metal valve stem fastens to the rim with a screw fastener and is all metal except for a seal. It is not flexible at all. If your valve stems bend at all, they are not metal clamp in valve stems. There are some valve stems that are partly metal, but fasten into the rim with a rubber grommet (and no screw tightened nut). That is not what you are looking for.
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There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.
2011 Jayco 28.5RLS; 2021 Chevy Duramax; Pullrite Superglide Hitch
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12-23-2017, 09:53 AM
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#3
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Senior Member
Join Date: Jul 2010
Location: Oklahoma panhandle
Posts: 562
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John, the simplicity of this is, If you look at the valve stem and can visibly see a metal "nut" screwed onto the stem, you have a metal valve stem, if not, it is rubber.
Shorty
For what it is worth, as RVhiker stated, some "rubber stems" have a metal stem but are rubber at the base. When I initially installed my TST system, that is the type I had. I ran the TST system on them for a couple years until I replaced tires and stems with no issues.
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12-23-2017, 11:31 AM
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#4
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Senior Member
Join Date: Nov 2017
Location: Longwood
Posts: 1,263
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RV & Shorty,
Thanks! Now I understand it all.
Happy Holidays!
__________________
2018 Jay Flight 29RLDS
2019 F250 FWD gasser
ΣΧ, UCF '78
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12-23-2017, 03:14 PM
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#5
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,859
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I bought 6- 2 packs of them from a local auto supply store. Much less expensive and convenient because many tire shops don't stock them.
I still have 4 left as they have never given any problem but it's good to have a spare on hand.
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 Moderator
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Companion Std hitch
Can't find what you're looking on JOF? Try Jayco Owners Forum Custom Google Search
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12-23-2017, 03:17 PM
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#6
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Senior Member
Join Date: Nov 2013
Location: Duxbury
Posts: 7,113
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I’ve read a lot about the requirement for metal valve stems with a TPMS, but have not had a problem with the rubber stems. Running the TST 507 and have never had to add air to any tire during the season.
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Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2022 Eagle HT 28.5RSTS
2017 RAM 3500 SRW CTD/AISIN CC LB
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12-23-2017, 07:53 PM
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#7
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Senior Member
Join Date: Jun 2012
Location: West Chicago
Posts: 550
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Is the metal aluminum on the stem?
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2019 F250, gas, 4.30
2017 29RKS
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