I called and talked to them and the answers sounded good - "We can balance that type shaft and if there's any issues with repairing your old joint we have a new adapter to convert the front of your shaft to a u joint.". So I sent it in and got a call Friday, "It's all ready to go, that'll be $351.00." When I asked about the repairs on the old joint "Oh, we can't even get the rubber boots anymore, much less the internals to rebuild the joint." Got it back today and it does look nice, but it would be nice if they were all on the same page, i.e. being told up front it can't be fixed - Hell, I have the boot and cover here, I was mostly concerned about balancing it afterward, so I could have sent parts with it.
View attachment 393174
Original on top, new mod below. (The top shaft is the better of the two I had and the torn boot isn't obvious in this pic.)
Now I need to reassemble the rest of the driveline and find out how smooth it is.