how do I know which way to turn a fixed cup on an 1984 CIOCC? I picked up an old CIOCC awhile back and am getting around to stripping it down and cleaning it up. I've removed the non drive side and both the cup and lock ring were right hand threads, I assume the fixed cup is left hand threads... but is it? the threading I.D. on the cups/ spindle are 36x24F, 70.

Thanks,
Steve