Yesterday about noon I filled the diff. with oil and friction modifier and drove it for 6 miles then let it rest for an hour, then 10 m. and rest, then 18 m. and rest. All at varying speeds up to 60 mph and stop and go driving. The last drive was to work. 22 miles, mostly at 70 mph with a long rest and 22 miles back with along rest. This brings me to now.
ZERO NOISE!!! YAH!!!
The hard work seems to be a success!
After the 22 mile drive at 70 mph, the diff. housing at the front (pinion end) was pretty hot! I could put my hand there and leave it but it was hot. Any reason for concern?? Am I just paranoid?