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More on U-joints Pg 160 March 4w-OR



March 1998 Petersen's 4Wheel & off-road
Page 160, 2nd column, 6th line from the bottom:
QUOTE:

"If the angles aren't equal, or if the U-joints are out
of phase, vibration can occur (see fig. 1 and 2)."

     The reason you phase the joints is so that the speeding up 
of one joint on one end of the shaft is matched by a slowing down 
of the joint on the opposite end.  When they are not phased the 
entire shaft resonates, as both ends speed up and slow down 
together.

     Does this help anyone with the clarity of my discussion?


     -Joel Brodsky

         '76 IHC Scout II 345/tf727
         '75 IHC Travelall 150 4wd 392/tf727
         '72 Chev Carryall 3dr 4wd 350/th350 sold, but not forgotten.




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