cylinder

I noticed a squeak/creak from my engine bay today when depressing the clutch pedal. I'm guessing I need to lubricate the shift fork/ball interface? Anyone else run into this issue? Noticed the service manual says to "lubricate slave cylinder pushrod". i take it they mean the ball on the end...

I'm looking at buying a new ported/CDV-deleted slave cylinder. there's a few available for 10th gens but i'm wondering if the 10th gen slave cyilnders would work on an 11th gen? Does anyone know if they are compatible...