i'm no tire expert
but i think the clearance issue would only become a problem when 1
tire was low enough in pressure to maintain constant contact with the
other tire then there would be up/down rubbing and transfer of heat
from the low/flat tire to the good one
--- In [EMAIL PROTECTED], "misterbuzzer" <[EMAIL PROTECTED]>
wrote:
>
> What do other group members think about this tire spacing with rear
> "duallie's"?
>
> When the older rigs bias ply rubber is upgraded to radials, the
> clearance between the tires decreases due to the radial tires more
> flexible sidewalls. My '83 27' Southwind with P285R16x85
replacement
> tires has only about 3/8" spacing between the sidewalls (Load
Range "E").
>
> I have found a lot of opinion difference between tire "experts".
Some
> say it's O.K., and others say it would be nice to have more
clearance,
> but; - adding a spacer would impose intolerable stresses on the axle
> assembly and lug nuts,etc. or, going to a narrower tire size would
> cripple the the load carrying capacity.
>
> I would like to see more spacing, but the "experts" seem to have
> divided theories on what's acceptable. Who knows what to believe?
>
> I would like to hear others opinions on this.
>
> Thanks, Hale.
>
>
> --- In [EMAIL PROTECTED], "denisond3d3" <[EMAIL PROTECTED]>
wrote:
> >
> > --- In [EMAIL PROTECTED], "Mick" <[EMAIL PROTECTED]> wrote:
> > >
> > > I'm looking at purchasing new tires for my RV, the current ones
are
> > > shot, they are 8X16.5
> > > i was told i could go up to a 9.75X16.5 tire
> > > so i priced out some 9.50X16.5 radials not to bad at costco
> > > anway my questions is
> > > is this true can i do it, has anyone had experience with this?
> > > thanks for your help
> > > Mick
> >
> > Can I assume the load rating of the tires you are
considering are
> > least as many pounds as the ones on the RV? That is, if your
current
> > tires are Light Truck tires, with a load range of D (8 ply) or
even E
> > (10 ply), then the new tires you get need to be that same load
rating.
> > This loading info is required to be printed on the sidewall of
tires
> > sold in the U.S.
> > Also, if you have dual tires on the rear axle, make sure the
new
> > tires wont have their sidewalls closer together than about 1
inch.
> > That would be at the point where the radials bulge out at the
bottom.
> > If they are close enough to touch, they will overheat and
blowout.
> > A tire dealer should have the technical info to make sure the
new
> > tires had at least the same capacity as the old, and would fit
> > compatibly on your rims, and your duallies. I dont know if Costco
> > would have that data. And a reputable tire dealer should refuse
to
> > install tires that had a load rating less than what came with the
> > vehicle.
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