Rotors fit fine, bolt circle proper, retainer screws proper, dust cover for parking brake adjuster is alright, however the issue of total fitment comes in from the mounting bracket of the caliper.wow! they even use the same retainer screw holes!
Please let these fit!
The width between the pads in the calipers is more than large enough to accommodate the Equus rotors, but at the bottom lip of mounting bracket prevents the rotor from slipping in. It bulges inward a bit. I measured 0.702" in that area. The thinnest the Equus rotors can be taken to is 0.725".
The calipers on the Equus look identical to our single piston rear caliper, so I would assume the part numbers are the same (On the caliper alone), I know the pads are the same part number (At least FMSI number). I would imagine the Equus uses a wider caliper mounting bracket.
So to complete this upgrade, you will also need an Equus caliper mounting bracket. Which I don't have access to at the moment. So for now, these rotors are going back.