Unusual wear in front diff issue...need advice

[magman]

Hey all...in my mbx5t, my front diff is wearing out...gear wear, much faster than the rear. Both diffs are shimmed correctly..so I am stumped as to why the front is wearing out faster. I did change out all the gears at the same time so they all were new together.

Any ideas...I only bash and 95% of the time its in very soft sand

Set up:
OILS
F 15
C 20
R 7

1520 on 5c Turnigy 40C running badland tires