Hi
I have had a rear caliper stick and take out my rear Passenger rotor. my rear discs were installed by Bobby Moore.
when we purchased the coach there was a spare rotor hidden under one of the beds.
the numbers on this rotor equate to a caddilac/toronado front rotor and it appears
to have had 1 factory hole elongated and then 3 extra holes drilled out to give 4 holes at 90 degrees apart.
i have just pulled off the rear hub and the disk that was installed had 8 mounting holes.

the rotor i am replacing has 8 holes evenly spaced so this is not an converted eldorado rotor
i am wondering why there are 8 holes

i have looked in the parts manual but it shows the front hub as a N.S.S. (which i assume means Not Serviced Separately)


i see from Applied website that the replacement front rotors look like my rear rotor

is it safe to assume that it is considered that 4 bolts are enough to hold the rotor to the Hub

i also need to recreate a spare rotor and have access to a lathe and milling machine
as i am in australia it has been easier for me to souce Eldorado Rotors
also my front rotors are below min thickness does anyone have the diameter required to turn out the center bore of the rotor for the fronts