Likely this ^^^^. My trans whines more in reverse.
Does it whine as you are moving with the your clutch fully engaged? trans I'd think
Or does it just whine as you let the clutch slip? pilot or release bearing would be suspect
Both could quiet down after things "warm up".
I did see in a thread someone warning of input shaft wear from the rollers. I've never installed a roller myself so I have no real experience with them.
