1.........Do you understand rotational clocking of the slip yoke? I cannot tell from that photo, but either of the caps on the one--piece part of the shaft MUST be "inline" just like rifle sights, if not, welded wrong yeah think I know what your talking about I call it u joint phasing when you look at the shaft the joints are inline I think my next step is to put the car on jack stands and see if or hear and issues with the car on them when running thanks again for the input guys
Thats not correct, you can have the joints in line and out of phase.
Did the shop have the front and rear section of shaft together ?
If yes then there should be a mark at both shafts how it needs to be indexed to each other.
If no then that shaft isn't right, the front and rear shaft MUST be together when ever any balancing is done.
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