Chalk method for tire pressure?

[chevmn]

Some would cringe at the pressure I used to run on 10-15 tires on 8 inch rims on a 67 C10 on the rear (empty). 4 ply load range B tires. Unloaded I routinely used to run around 10 PSI. I basically looked at sidewall flex, and inflated to just where there was some bulge in the sidewalls. Keep in mind, I rarely was running any interstate, and the speed limit was 55 at the time. These were bias ply tires (no one ran radials yet in the 70s.

[airdale94]

I like to run as close to max pressure that the tire is rated at. No matter what anything else says. The car,the boss, the customer.

[CastIron]

Being an auto technician, I see a lot of tires and seen how they wear at different pressures. And one thing I notice is that tire pressures aren't nearly as important to tire wear as a good alignment. And I mean not only having all the angles right, but having suspension that is is good shape and not worn and loose. I personally wouldn't bother with doing any testing with chalk. For A/T tires, I'd run between 35-44 psi, whatever feels best when driving. BFG A/T tires usually wear funny regardless of what pressure you run. And they get loud and need rebalancing fairly often. That's true with most all terrain type tires.
And.. the pictures do look like the rims are too narrow for the tires. I'd use the rim size that the tire manufacturer recommends for the size of tires that you use.

[mjmarinara]

Cast Iron: I tend to agree with you...

Pictures of the new Jegs brand Rallies! 15x8 4" bs $80 a wheel cant complain!


(And a photo of my trucks hangin out side by side, 6.0 LS swapped s10, nv3500, vette brake etc...)

[special-K]

Good proportions. Those look good.


Sorry to hijack, you can reply in a PM if you don't want to here. What have you done to the S10 suspension? I'm driving a buddy's Sonoma while fixing my Suburban head gaskets and thinking about buying it. It's black and stock height. I'd like it to sit like yours. Was thinking just spindles and see how that looks, If anything, adjust rear height with blocks. I still want to haul, so prefer keeping stock springs.