finally.... The service department called this evening, to say the sling was ready for pickup. Here's a recap of why it was turned in..
bearing check, possibly replaced/noisy rear
Belt tracking off a good 1/4 inch from pulley
Vibration in front end
Double axle nut added while tore down for bearing check.
Here's what we were told...
Belt adjusted
Front pinion seal was leaking, was repaired
Double axle nut installed
Found nor felt no vibration in front end
Found nor heard no noise from rear end.
Had to ask them if they checked the bearings and the man said "oh yeah. Uh, yeah we checked that too, it was fine. "
So.... 2 hours prior to the start of working hours, it's ready. It'll have to sit there until Monday afternoon when we are off work and had a couple hours sleep.