My front rotors are rust welded and the RR Racing 2 piece rotors do not have a slot for the M8 1.25 bolt. Is there any way to take this rotor off? Or do I need to WD40 and hammer it off is what I'm thinking...

 

I've used a freakin 16 lb sledgehammer before, but I was trashing the rotor after, though it didn't seem to warp it. You could also use a slide hammer (used to remove hubs). I have a cheap 5 lb one that works great.

 

A good sized dead blow hammer swung two handed with extreme prejudice on the face of the rotor usually will do the trick.

 

Expect your hubs to die in a couple of thousand miles after beating the rotors with any hammer. It's pretty common. Try heating with a heat gun or torch to loosen them up before hitting them. You might get them off without any issues with heat.

 

On a different car I had success with removing the wheel and stacking wood underneath the rotor. Slowly lowering the car to break the adhesion between the parts.

 

after an hour of soaking the rotor face and centerbore in penetrating WD40 I hammered it out after 20 minutes of hammering😭 thanks guys.