Originally Posted by khofman

Don't beat yourself up too hard, I recently ordered two diff rebuild kits from amain to fix leaking diffs. Both only included .2 sun gear shims. Called AE & since my truck is under warranty, they are sending me two sets of .5 shims and also new diff cases. The tech asked me what color the metal inside diff cases were & after I responded brass, he proactively included the cases. Just figured I'd share that last part incase anyone else suffering from leaking diff & .5 shim alone didnt help. Apparently the diff cases must've gotten an update as well.