If I replace the r/f brake rotor, do I need to replace the l/f rotor as well?

 

its better to relplace in pairs

 

YUP
Why are you replacing the r/f? Did a caliper get stuck, what brand of rotor and pads are you going to be using?

 

Yeah Mike, I think so. The inner 80% of the rotor is the only surface touching the pad.

Original LR rotors and pads would be better if I can get one locally.

The independent rover mechanic said the rotor can be machined to level the surface.