Hey guys, where would you measure your tire tread from? The small groves heading towards the end of the tires? Or the three long and deep lines in the center? I have these tires, http://www.tirerack.com/tires/BigPic...=445WR8RE760XL
<br> One more quick question, when I got my alignment, my toe was "0.38". Driving 100 miles, I lost 30% of my tread. Is this possible?

 

http://www.tirerack.com/tires/tirete....jsp?techid=51

No, your tire would need to be flat and locked, dragging for a hundred miles to lose 30%.

Post a pic of the tire.

 

You measure from the long deep lines in the center.

 

Measuring Tire Tread Depth with a Coin
Measuring Tire Tread Depth with a Tire Gauge

 

+1

Go with the center tread lines.

 

Ya I know how to measure it. But didn't know where. Does a -10 SAI have any effect on tire wear? Spec is +4 - +6. Thanks