Mr.Mark wrote:
waxerk5 wrote:
timmac wrote:
What size of tire, 19.5 or 22.5, if its 19.5 go up to 16 ply vs 14 ply that the factory may have on, this increases your safety from blow outs if RV is loaded to max.
I have Hankook AH11 16 ply installed for $2700 here in Vegas {19.5/6 tires, includes tax} and just recent had front and rear axel aligned by computer alignment machine at a new fancy truck place here in Vegas and it cost $175.00, now my motorhome runs straight down the road, worth every penny.
I have the 19.5's and I agree about the 16-ply. I'm only going to get the front axle aligned because the rear is non-adjustable. That's an alignment industry myth regarding the rears. To align the front, they take measurements from the rear and adjust the front to match.
Thanks for responding.
Mr. Wax,
Are you saying that just your coach has a 'non' adjustable rear axle or all coaches?
MM.
The rear is leaf sprung solid axle. There are no tie rods or adjustable links that locate the axle, like a track bar or control arms. It's the leaf spring center bolt and the spring perches on the axle tubes that locate it. If there were a need to adjust thrust angle for some reason, it would mean there is frame damage that needs to be addressed because of that lack of adjustability, OR there were severely worn out leaf spring bushings that need replacement. Again, no set of adjustable links anywhere. It's more about measuring the alignment to indicate there are other problems such as frame damage or bad bushings.
Rears do come adjustable that have independent suspensions or that are coil sprung with control arms, track bars, etc.
My statement was regarding the leaf sprung solid rear axle setups. Yes, I'm aware there are thing such as shims that can be used to adjust the angle of the pinion. However, that doesn't adjust the alignment.