This rotor (
'80-93 MotorCraft BRR8) has been mildly scored by excessive wear on the pad (
Motorcraft BR41B). Although resurfacing or replacement is always preferred, this damage isn't severe enough to require it on a vehicle whose rotor is this difficult to remove/install.
Before buying craptasmic brakes or other common parts, check for
coupons & service offers from Ford.