fan was out of balance and rattleing-vibrating

I pulled the wiring harness off the bad motor, removed the fan blades (it was just a press fit and can be pulled off by hand), took out the three screws. The fan on the replacement motor had to be installed out of the fridge. I wiggled the new motor into place and installed the three screws. I cut the wiring harness off the fridge side and cut back the insulation. Using wire nuts I reconnected the wiring. I plugged the fridge back in and it worked like a champ.
The repair went fairly easy. The motor was a bit difficult to get into tight space with my big hands. The wiring harness on the fridge side had to be cut and wire nuts used to reconnect the wiring to the new motor but it was pretty straight forward. Over all the repair was easy except for being in a tight spot. I recommend trying to fix it yourself, you may supprise yourself and save some serious bucks on labor cost to boot.