I broke afew teeth 30T tumbler gear on my Myford Super 7 and have ordered a new set .Im just waiting for the post to get them .
My question is why are the two tumblers different ? one 30T and the other 28T the 28 T on my lathe was for reverse. I changed the 28T gear to the other spindle so I can use the lathe if I really need to am not sure if the will the 28T gear will affect the pitches of any threads I cut .It is fitted witha screwcutting gearbox .
Probably a basic question that I should know the answer to and the manual says nothing about the two gears,not as far as I could find .
Thanks in advance .