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Old 07-10-2015, 01:16 PM   #1
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Steering and Handling

what is this about having your vehicle 4 corner weighted and ajusting air press thank you bob
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Old 07-10-2015, 01:25 PM   #2
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Welcome!
Four corner weights are the weight of your coach on each ties(s). Once you have this number you then go to your tire manufacturers inflation charts and determine the optimal pressure to have in each tire. This ensures safety, road comfort, and longevity from your tires.
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Old 07-10-2015, 01:57 PM   #3
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Just had mine done, right front is 800lb heavier than my left(from factory). My rear dual tires are almost maxed out for the axel. This all matters when you pack up all the gear/food/water you want to bring with you
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Old 07-10-2015, 02:01 PM   #4
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what is this about having your vehicle 4 corner weighted and ajusting air press thank you bob

Bob,

There are basically two ways to establish your cold inflation tire pressures.
1. Your gross axle weight rating (GAWR) for both your steer and your drive axles. Those ratings should be on a placard close to the drivers seat. Adjust your tire pressures to carry this max weight. Tire manufacturers publish charts with the proper pressure. Remember these pressures are the minimum required to support that weight. It's ok to go higher but never lower.

2. Weigh your coach. The best is a 4 corner weight but a weight by axle is easier to come by. In the case of 4 corners, inflate to carry the weight of the heaviest end of the axle. Never mix pressures on the same axle. If you get an axle weight then you don't know if one end is heavier, so plus up the pressure by 5 psi or so to cover any imbalance.


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Old 07-10-2015, 05:21 PM   #5
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Just an addition to Vince's post. Tires on the same axle should have the same PSI. Even though one side might be lighter than the other, PSI in both tires should reflect the higher weight.
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Old 07-10-2015, 07:48 PM   #6
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Welcome!
Four corner weights are the weight of your coach on each ties(s). Once you have this number you then go to your tire manufacturers inflation charts and determine the optimal pressure to have in each tire. This ensures safety, road comfort, and longevity from your tires.
Vince is absolutely correct. Goodyear, Michelin, and the RMA=Rubber Manufacturers Association all say to never run less than the vehicle manufacturers tire placard stated air pressure.
Goodyear
RMA (pg 55)
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