Posted by Chris Case [108.247.159.48] on Friday, April 10, 2015 at 19:11:21 :
In Reply to: Re: Just line up, posted by Willy-N [72.171.192.62] on Friday, April 10, 2015 at 14:31:39 :
It has to do with making the drive shaft as a whole a "constant velocity" system. The light weight tube in the middle will vary in speed as the u-joint angles change, but the two ends will remain "constant velocity".
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