I recently found that my parents BA had aftermarket slotted Rotors fitted to it when they purchased it. I was wondering when they go to trade in the car in a few months time if i can take the slotted rotors from their BA and fit them to my EL falcon? Can this work or is there some problem with sizes between the models?

The offsets for the wheels were different for Pre-AU and post AU+ falcons... so the brakes might interefer with the wheel... Id say just buy the ones for your car... im sure there is a good reason for the discs to be sold seperately for different model cars.

Cheers

Exactly as said above, you can pick up a set of rds slotted rotors for an ef/el for next to nothing, like 65bucks for rears in melb at hightek brakes per rotor, not big $$$ imho..

the BA rotors are totally different to your EL and will not interchange.