what psi and rotation interval for BFG mt?

[king cotton]

wondering what is the best psi for my new BFG mts? (255/80/17 E rated)

I have them on a dually.
from the tire shop. 78 in front tires, 90/72 on left rears and 90/74 on right rears.

also thought about rotating every 7500 miles. what say you??

[CtAlucard]

I'm running 76 in front, 65 in rear with the same tires. Running less in the front caused bad wear on the outer lugs.

[king cotton]

my front tires seem to "wander". maybe when i lower the pressure it will help. or maybe they are not broke in yet. can you shed any light on that?

[wrongagain]

65 psi front and back

[Sandman76]

Draw a chalk line across the face of the tread, drive straight about a block and see what the chalk line looks like. If it's worn on the outside of the tire the pressure is too low, if it's worn on the middle of the tire then the pressure is too high. This also varies with load, of course.

[07INFERNOREDSRT8]

65 front & rear, rotated every 15K all highway miles, I would in town every 7.5K. I used a three tire rotation on each side, rear outside to inside, front to rear outside and rear inside to front. Seemed like the rear outside would wear a little quicker. Got 194K out of a set of Michelin.