I have a question as well. I found this thread so I didn't see the need to start a new one.
How do you tell when you need to repair a ratchet? I have a Snap-On 730A that works OK but there is no obvious click of the gears. I found the repair kit (RKRAF730) and for $10 I'll just change it out, but do I really need it if the ratchet still works?
Maybe I should take it apart and take a look.