View Full Version : Rear IRS brake rotor play
slpro1207
06-25-2017, 06:22 PM
When I was mounting my rear wheels today I noticed I had a lot of play in on to rotors. Is this normal?6936369362
Melb-Mike
06-25-2017, 07:21 PM
Sure looks odd. However, once the wheels are tightened down, play around the wheel studs doesn't matter. I'm assuming these are the standard rotors from a Mustang donor. I replaced mine with the Wilwood brake upgrade but I don't recall the old rotors with that much play. The center hub makes the rotor concentric so it will run a true circle.
RoadRacer
06-25-2017, 07:36 PM
ALL of my brand new rotors on the 33 have that much play - the FFR kit ones and the new rotors I added to my 8.8.
TBH, this looks normal to me.
slpro1207
06-25-2017, 09:27 PM
Sure looks odd. However, once the wheels are tightened down, play around the wheel studs doesn't matter. I'm assuming these are the standard rotors from a Mustang donor. I replaced mine with the Wilwood brake upgrade but I don't recall the old rotors with that much play. The center hub makes the rotor concentric so it will run a true circle.
These are new rotors. Part of the IRS kit from FFR. It may not be a big deal. Just seems like they would shift back-and-forth.
edwardb
06-25-2017, 10:50 PM
These are new rotors. Part of the IRS kit from FFR. It may not be a big deal. Just seems like they would shift back-and-forth.
They won't shift with the wheels installed and the lug nuts torqued down. As long as the center hole is a decent fit and they run true as mentioned, there shouldn't be an issue.
CraigS
06-26-2017, 06:12 AM
The standard Mustang lugs are, I think, 14mm. Remember you replaced them w/ the 1/2 inch that came in the kit? This accounts for the difference.