BTTM

iTrader: (1)

Please post pics of your drilled/slotted rotors on your vehicles. I went to get new tires and the mechanic claims I have them on backwards; the right front should be on the left front and vice versa.

When I received them they had stickers telling me which side they should go on and I installed them accordingly.

Want to know if the mechanic is right or does it really matter.

spy2520

iTrader: (3)

I think the vanes determine the direction, not the holes and slots.

jmm98LS1

iTrader: (28)

That's correct...I've seen rotors with slots going forwards and other rotors have them going backwards.

trackbird

iTrader: (4)

Yes, if they are straight vanes (internally) in the rotors, they can run either way. However, for a long time, it was known (accepted?) that the slots swept from the hub out as the rotor rotated. This was to prevent pad material accumulating at the hub and causing a buildup that would produce a shudder (feels like a warped rotor). However, Baer slots theirs "backwards" (compared to this advice) and others do as well. So, it's not set in stone.

BTTM

iTrader: (1)

Thanks for the info!