Tire air chuck for duel tires

I have run Cross fires on semi trucks over 2 million miles personally. LOVE THEM. Pressures are exactly the same. I have seen a chart about the tire wear when pressure is only a couple pounds different in a set of duals. They have a check valve in them, so that if one tire has a leak, it will seal, and not allow air to drop over 10# in the other tire.

I got better tire life, and tire wear with them, both on my semi, and on the trailers.

Also made it very easy to check pressure. Just take a glance at the face of them, and if in the yellow, good to go! Turn black if under pressure, red if over.

all 4 tires, no such kit exists, that is a major modification to the RV, and may not be the best thing for you.

With tires, epically the rear ones, it is important they all present the same RADIUS (and by that I mean the distance from the center of the axel to the road surface) and that may require the right and left side be different pressures.

Cross-Fire dual tire inflation/monitors http://www.myerstiresupply.com/shop/shopexd.asp?id=746

May be what you are looking for, they come in assorted pressures, I am unable to install on my coach.

Why would a "All 4" System be all but inmpossible,, Well, the side to side crossover needs rotating seals, and there is not a practical way to do that less you drill out the length of the axles.

I have seen the $150.00 per set. This item was just two shout pieces of hoses connected to a Y that screwed onto the valve stems and had a tire schrader valve to add and remove air. It was around $15.00 at the time. I am making one up, but it would be a lot cheaper probity better to just buy one.

Being somewhat gun-shy from 2 separate tire failures in less than three months, I'm a bit intrigued by this. Anyone with first hand experience using a Cat's Eye system? If so, then what criteria do you use to get the correct pressure system? Do you go with the max inflation listed on the actual tire? I notice that there are multiple models available to cover both the tire size and the pressures.

I've seen them on tractor-trailer rigs, but not ever having a dual tire configuration before owning our coach, I really never gave it a second thought.

Iowa80.com has them in their catalog...all different pressures...

Do a Google search for Crossfire dual tire equalization. I don't remeber one that would do all four but maybe there is. And I don't think they need to be 100% exactly the same.

Check out any large truck stop. Truckers use them all the time.

Something like Cats-Eye?