Background info: new clutch as of last Saturday (Exedy OE with ACT 12lb flywheel). Got about 175 miles on it right now

Story: car's just been acting weird randomly. I was cruising at 55 in a straight line, then the car just started to shake. It wasn't the first time, so I let off the gas, then back on (only about 1/4 throttle) and it was fine again. It's happened 2 or 3 times so far and I can't figure out what's going on. Is it common for new clutches to randomly slip while they're breaking in?

 

Anyone? I need to know if this is normal, or should I bitch at the mechanic (I work with him at Toyota, so I don't wanna start trouble only to find out it's normal)

 

that doesn't sound normal at all. i wouldn't bitch at him, but let him know what is happening.

 

Had it inspected today. Turns out the left CV was installed improperly (inspected by a different mechanic), so they're replacing it for free. It's gonna be a few days till it comes in, and the car is at the point where it's not safe to drive over 45mph, so I'm gonna park it till it comes in