Quote:

The downfall is the uni bearing style of hubs. Yukon has conversion kits starting around $1,750..



That is debate able.
So now you are out 1,750 to 2 grand plus labor. With the conversion kit you have maintenance. Pack bearings, replace seals and any other parts that could fail. You might get better mileage. You now have to get out of the truck and lock and un-lock them. You also have the possibility of locking hub failure which means no four wheel drive.

The unitized bearings have no maintenance. You could replace 10 to 20 bearings for the 1,750.00. No hubs to lock or unlock. Four wheel drive most likely will continue to work. You might lose a little fuel mileage.

To me its a no brainer. Leave it alone. My last truck had one unitized replacement in 150,000 miles.