I changed the differential oil today and had alot of fine metallic matter like a glitter in the old oil. Upon cleaning and a closer inspection, I have a t\gear tooth from an unidetnefied part missing. Can anyone tell me what gear this and what would cause it? It is only one tooth which i find hard to understand how all the other teeth are not worn. If you click on the picture arrows show up pointing to the mising tooth.
Any help would be greatly appreciated.