Forum Discussion
HiTech
Jun 08, 2013Explorer
More lean is party from sidewall flex in the tire.
I corrected my prior statement, remembering that you need symmetry on the axle. Apparently you decided to not quote that statement?
No I won't quote the ford spec for pressure differential but you are welcome to look it up if you are curious. Clearly tires will not all be the exact same pressure when there are 4 on an axle. You can be within the spec and have more air pressure on an inside tire (not fun for stability -effectively creating toe in), or more pressure on the outside tire. They will never be exactly equal. I have found that more on the outside is preferable, especially since hot, the inside tires tend to hold more heat and inflate higher if an attempt is made to set them to exactly equal cold pressure.
Airing up the outside tire effectively creates a slight toe out. Toyota first introduced it as a fix for their little class C's and the handling problems they had when heavily loaded. It has worked very well for me for years. Feel free do do it or not.
Jim
I corrected my prior statement, remembering that you need symmetry on the axle. Apparently you decided to not quote that statement?
No I won't quote the ford spec for pressure differential but you are welcome to look it up if you are curious. Clearly tires will not all be the exact same pressure when there are 4 on an axle. You can be within the spec and have more air pressure on an inside tire (not fun for stability -effectively creating toe in), or more pressure on the outside tire. They will never be exactly equal. I have found that more on the outside is preferable, especially since hot, the inside tires tend to hold more heat and inflate higher if an attempt is made to set them to exactly equal cold pressure.
Airing up the outside tire effectively creates a slight toe out. Toyota first introduced it as a fix for their little class C's and the handling problems they had when heavily loaded. It has worked very well for me for years. Feel free do do it or not.
Jim
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