W-K has a slipper..
 

I finally found the source of my clicking! i re-shimmed the axles even though they didnt look like they were slipping and the clicking continued. I disassembled the W-k tranny and discovered that the idler gear has a slipping feature similar to a servo saver to protect the drivetrain. This is good news! no broken gears!"thumbsup" This was never an issue before the 4:1 gear reduction.:-P