Ok to clean rear diff 3rd member with brake cleaner?

Unless the final part needs to be totally grease free (such as for paint, loctite or gasket sealant) I use carb cleaner for my basic spray cleaner. Carb cleaner will leave a slight film, but cuts oil better. Carb cleaner and an air hose for most stuff, followed by brake cleaner and an air hose if it needs to be "dry".

I clean differentials by driving a few minutes easy with the oil replaced with kerosene. Cuts the sludge.