I have been debating with myself on whether I want to go with
a two piece seal instead of the stock three piece seal.
Some people say the three piece seal can roll out of the slot
but looking at this scale drawing of the 2 mm three piece 
set up I find that hard to believe unless they are installed 
incorrectly or are very very worn out. The .052 inch dimension
is a wild guess on my part. It is probably less than that.
What do you think that dimension should be Jon?

Paul Lamar
 
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