Maxing out tire pressures...

proxim2020 wrote:

Cummins12V98 wrote:

I run the tires on our Tahoe at 44 front and 40 rear. Even with those pressures the front edges wear. If you step up to a D or E tire and run full pressures you will wear out the centers unless you have enough load.

This is true. At those pressures it's easier to get a tire to crown with a light load. Ever thought about getting 51 psi tires for the Tahoe? It might help the edge wear problem.

There are a few other attributes to this

Rim width in reference to the tire's recommended rim width

How you drive. Never throttle over 40% to 'in it a lot'. Of course
the terrain...pure boulevard, pure highway, gravel roads, etc.

How your suspension is setup. Lifted, shocks, increases torsional
rigidity (anti-lean bars...AKA anti sway bars), etc

The tire's construction also. Had several sets of Michelin LTX-MS
LT265/75R16E's on 16x10 alloys at 80 PSI. All FOUR wore the two outside
tread ribs faster than the center ribs. Found that Michelin really
put in a lot of 'stuff' to keep the tread edge to sidewall stable.
That then had it pinch in the tread because the rim width outside of
their recommended rim width.

My Odyssey's front tires continually wear out the outer tread rib.
Even with max 51 PSI. It's the way I drive that does that. Mainly the
left/drivers front...because most all highway exits are to the 'right'

The Silverado's 33/12.5R15LT load range C's wear out the center. Both
because of the narrow rim (8.5 inch) and that they are way over sized
for a half ton. I do load it up often with gravel/dirt/wood pellets/etc
but it's mainly driven empty. Sidewall says MAX 35 PSI and do keep it
there because anything less has the sidewall's roll over on turns and
curves. It does have MonoMax shocks on all four corners and an over
sized front anti-lean bar.

Then of course alignment...