Jason,
I sheared two bolts in the rear yoke and had to get it replaced. Mine is a 70. I had real good service from American Powertrain or Drivetrain in Ocala FL. Orville is the owner and quickly got the part. They replaced it. I think it was on w/ more than 300 ft/lbs. There was no way I could have done it at home. I see that WI is a long way away, there must be a Dana drivetrain shop closer that can fix you up. What about one of the heavy truck places along 90/94?
Glenn