Interesting...only half the time...for a warped rotor, you'd think all the time.

A loose shim can be at work too...

Does the frequency (sound) of the grinding noise change with the wheel speed?
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- TJ

2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....

Friends don't let friends drive stock.

http://www.gifsoup.com/view/501230/tj-tackling-crawlers-ridge-o.gif