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Old 04-03-2013
RubberTramp RubberTramp is offline
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Join Date: Mar 2012
Location: Guilford
Posts: 32
Default drive line noise

So I went out for a fuel and shakedown run and have a terrible noise in the drive line. it is most noticeable under load and in the galley. it can't be heard from the drivers seat and is a ticking or clunking that turns into a whine as speed increases. also when stopped you can her a clunk when changing from drive to reverse or if you let off the brake and reapply it. I thought it was a u-joint but I have pulled the drive shaft from the pinion yoke and there is no play or grit in the caps nor was there play when i put the pry bar on the joint while it was still installed. the yoke moves by hand about a 1/4 inch in each direction before stopping. should there be this much lash? there is no pinion bearing end play. thoughts?
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Adam Ives
Guilford, Connecticut
78 FC31SB
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