Robert,

It is more likely for a clutch to chatter in low gear because you are slipping the clutch to get moving. Once you are moving and you shift it correctly, you slip the clutch very little.

But a clutch will slip easier in higher gears because it takes more torque being transferred from the engine thru the clutch to propel the car. Also, chattering may be caused by oil getting on the clutch plate from a leak in the engine or transmission.

P E H