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Old 05-21-2008, 12:01 PM   #63 (permalink)
Finless
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Join Date: Nov 2005
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Quote:
Originally Posted by toaster12 View Post
Splines, I believe he is referring to the torque tube ends that fit into the umbrella gears.

Probably for putting a longer boom on the 600!
I will have a look see but I am not taking my 600 apart to check.....

Bob
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