Whole lotta' shakin' (cont.)

Thanks to all for your advice on my TR6's overall
shakin' problem.  I'll re-check the balance on all
four tires and then proceed to check the u-joints on
the drive shaft.  Question:

What exactly am I looking for in determining if I have
bad u-joints?  Is it just finding slop and play in the
joint when you turn the shaft?  Or can you actually
see something which might show joint failure?

Thanks, 
Joe Merone
CF18928


                
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