quote:I had some trouble with
Not knowing what you mean by this, I'm just tossing out ideas. There may be nothing wrong with anything.
First off, I see no retention clips on any of the u-joint cups.
Second, if vibration was the problem, there are 16 nut-bolt connection points on the two shafts. If they are the slightest bit loose, you will get vibration.
Where did you source the u-joints? Did they require the once-common use of a thin shim spacer?
Hate to see you dump these if there is nothing wrong.
Larry