Any truth to this with a PML?

Umm, no. W/ the 1st gen of X's, the front axles are not rotating in 2WD. On the new X's, the front axles are rotating at all times, however w/ a PML (coil spacers) they will still be within the service specifiations/tolerances for operation, so there isn't any possibility of additional stress on them.

why would you drive your X at 90 MPH anyway :rolleyes:

Just a concern for driving fast in general. I'm not very patient once I get on the highway. Too much asphalt ahead of me to putz around when the speed limit's 75.

Why do people always have to ask stuff like this and get up on their anti-speeding chair to start preaching? The guy asked a simple question, why on earth is it necessary to throw this in, when you in know way helped him out?

Sorry for the rant, and this certainly isn't directed just at you, it's just a pet peeve I've developed here from seeing it happen I don't know how many times.