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Old 09-27-2021, 07:03 PM   #1
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Tire Pressure Gauge

We just recently got our new class C that has dual wheels in the back. Does anyone have a tire gauge that they find works well to check the pressure on the inside tires? The one we have isn't designed to work well for this purpose, as it's too short.
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Old 09-27-2021, 07:34 PM   #2
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https://www.amazon.com/Master-Tire-G.../dp/B008B9X6HQ

Works for me.

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Old 09-27-2021, 07:39 PM   #3
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Originally Posted by ttowntrouble View Post
We just recently got our new class C that has dual wheels in the back. Does anyone have a tire gauge that they find works well to check the pressure on the inside tires? The one we have isn't designed to work well for this purpose, as it's too short.



Have you considered that if you were running a TPMS, which is a good idea in itself, You would not need to be getting down on your knees, and checking tire pressure. Using a TPMS gets the job done in less than a minute.
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Old 09-27-2021, 11:40 PM   #4
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Have you considered that if you were running a TPMS, which is a good idea in itself, You would not need to be getting down on your knees, and checking tire pressure. Using a TPMS gets the job done in less than a minute.
Just be aware most TPMS sensors turn off after not moving for a while. So the pressure readings you get when you first turn it on before hitting the road will be old/pressure readings from last time you where in motion.

You would have to start moving before you get current pressure readings.

Also TPMS are not near as accurate as a pressure gauge. They are still a valuable tool for the road.
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Old 09-28-2021, 12:01 AM   #5
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Look on Amazon for valve extenders. There are 5 or so straight ones for the inside tire, and 135 degree curved ones for the outside tire. Metal valve stems for the wheels are a must, rubber ones will fail with the extra weight on them.

Then you can use a normal tire gauge.
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Old 09-28-2021, 04:24 AM   #6
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The trick to that inside valve stem is to clock the wheels properly for access. Ham hock hands don't help.
My collection of tire pressure tools and gadgets is being considered for a Smithsonian exhibit if they can find a room large enough.
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Old 09-28-2021, 12:56 PM   #7
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Originally Posted by SergioP View Post
Look on Amazon for valve extenders. There are 5 or so straight ones for the inside tire, and 135 degree curved ones for the outside tire. Metal valve stems for the wheels are a must, rubber ones will fail with the extra weight on them.



Then you can use a normal tire gauge.


Having had and seen so many extensions cause failures, I would never recommend adding extensions. But I would recommend having extra long valve stems installed. I have 10 valve stems on the inside duals pointed out through through the wheel. My electronic digital gauge works well on all wheels.
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Old 09-28-2021, 02:41 PM   #8
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https://www.shinyrv.com/product/valv...-wheels-dlsss/

Here’s what I use to stabilize the extension
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Old 09-28-2021, 02:54 PM   #9
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Get the extenders installed on your duals and checking pressure is simple. I have had them on all my campers dating back to my 1987 Toyota based Class C. Never had a failure and never had a problem with any tire gauge. TPMS is not the answer for checking and setting correct tire pressures. It only helps with slow leaks.
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Old 09-28-2021, 02:55 PM   #10
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This is the highest quality, most accurate gauge on the market


https://www.amazon.com/Milton-S-506-...2862484&sr=8-5
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Old 09-29-2021, 02:31 PM   #11
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I carried one like this for thirty years driving a commercial truck and it's still in great shape.

https://www.iowa80.com/pd/dual-foot-...-chuck/163328/

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Old 09-29-2021, 03:37 PM   #12
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Tire Pressure Gauge

Actually Id say normally its its the outside tire that points to the Inside .. the inside tire is easy it points out
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Old 09-29-2021, 03:48 PM   #13
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This is the one that I use:

Milton s-986C Calibratable Tire Pressure Service Gauge, Dual Head Straight Foot Chuck, 10-160 PSI

Available from Amazon: https://www.amazon.com/Milton-Indust...omotive&sr=1-8

Although it's a little more expensive than some, it's still reasonably priced. One nice feature is that you can adjust the calibration to give a more accurate reading.

Take care,
Stu
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Old 09-29-2021, 07:58 PM   #14
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@TXiceman, @Crabby97439 and @777 Driver,
This type looks like it would work great. We have one of the ones with a flexible "hose", but it's impossible to get it lined up properly.

@Tireman9,
The unit has a TPMS, but I'm kind of a "measure twice, cut once" type of person. I'm more old school, and like a physical confirmation.

@Mac99,
That looks like a good solution for both checking and filling. Definitely going to check it out further.

Thanks all for the suggestions! I think I can make any of these work. Appreciate it!
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