Step 5 of the removal procedure:well I posted the installation instructions for obvious reasons but also was to show that the O ring was not mentioned for putting it back together. So mongo was probably correct that it was used to hold the rotor in place during assembly. But I'm sure its no big deal if you do put it back in.
I'll be trying front & rear brakes this weekend and am doing a little research when I came across this.FRONT
NOTE: Front rotors and hub/bearings are matched mounted for minimum lateral runout. Before removing the rotor, mark the rotor and hub/bearing to maintain original orientation.
lol, OK, common sense tells me that you "Can" discard the O-Ring because it is NOT necessary after the assembly line.Step 5 of the removal procedure:
5. Remove and discard the o-ring (2) securing the disc brake rotor (1) on the hub.
Says to discard...I don't follow directions well. I would have made a good
officer....for a short time..........
Doh! I screwed up too, but I replaced my hub with a new one, because the wheel bearing was worn out. So preserving the tolerance stacking of the run-out was NOT going to happen for me.I'll be trying front & rear brakes this weekend and am doing a little research when I came across this.
I know it's old but it raised a question for me:
What do I do about the above note when I change the front rotors and there is no orientation mark?
On any past vehicle I have had there was not specific orientation.
So I am hoping with non factory rotors I don't need to put it on a lift and measure run out.....
Applying some anti-seize to the hub and rotor will prevent that in the future, also to the wheel and rotor face, I've had aluminum wheels seize to the steel rotor.I replaced my front rotors about a month ago and I did not see anything about the orientation, anyways it was simple up until the point of getting the rotor off, they were really stuck even after wd40 I had a rubber hammer and I hammered it from the back until it came loose, don't be afraid to hit it it does take some really good force before it comes loose and you can take off, the putting on was very simple and now my breaks don't squeak at all.