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Old 12-08-2018, 12:02 AM   #1
Junior Member
Join Date: Dec 2018
Posts: 4
How to check tire pressure on inside duallies?

How do I check the tire pressure or add air to the inner rear tires of my 2401R MBS? I just bought it new and the 4 outer tires were all close to 20 psi below spec so I am guessing that the other 2 need air also.
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Old 12-08-2018, 08:47 AM   #2
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Join Date: Jul 2018
Location: Baraboo, WI
Posts: 353
You will need to get a truckers air gauge and take the time to learn how to use it. Some people add extensions to their duals to make it easier. When I had an RV, I could check the inners with the extended air gauge. I would add a tire pressure monitoring system if I was you.
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Old 12-08-2018, 11:26 AM   #3
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Join Date: Mar 2017
Posts: 2,152
I bought this one for my F350 Dually.

AstroAI Digital Tire Pressure...

Works well. It has a straight push-on chuck on one side and the angled on the backside.
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check, pressure, tire

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