[wrench87]

it looks like you had too much preload on the carrier bearings, you have to leave a liitle room for the differential lube to do its job. i worked for a jeep dealership for 15 years and i use to see the carriers set to tight from the factory and ruin the carrier bearings, we use to take 3to4 thousands off each side by installing different shims. on a 9 inch ford you just have to set a little less preload with the screw in adjusters.