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differential degrees

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Old Dec 8, 2014 | 09:12 AM
  #1  
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emo666
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differential degrees

I own a cherry 2000 "E" 350 superduty chassis RV 22 ft coachman. I have just had a air suspension installed in the rear. The installers records got water stained and they can not remember the" differential degree angle" which is important as I now have a loud humming while running. Does anyone know where I can find this info????? OR how this can be corrected??
 
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Old Dec 8, 2014 | 11:49 AM
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Big-Foot
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From: DFW, TX-GoldCanyon, AZ
I think you may be looking for the "pinion" angle... It should be parallel or close to that of the crankshaft on most vehicles.. Also the centerline of the pinion and crankshaft should not be in the same plane. IE the pinion centerline should be below that of the crankshaft. This will allow the universal joints to actually rotate and distribute the load properly...
Hope that's of some help....
 
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Old Dec 8, 2014 | 12:38 PM
  #3  
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That depends if it is a 1 peice or 2 peice. This Dana guide has all the info you need to set any driveline up.
http://www2.dana.com/pdf/J3311-1-DSSP.pdf
 
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Old Dec 8, 2014 | 01:18 PM
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If it's even close there won't be a "loud humming"....something funny here.
 
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