Just wanted to know about break in period for installing 373 gears. also a friend said he read in a magazine that Mickey Tompson ET Street Radial Tires need breaking in.[/align]

 

Most people say give it 500 miles, but noone ever waits that long, LoL. It's not so much the miles drives, rahter it's the "cycles." In other words, just drive them to heat them up, then let them completely cool down before doing it again. Repeat that a few times and you should be okay.