Originally Posted by PaulMys
Hmm.... That's strange. I have light surface rust on my drive shaft, yolks, and a few other small front end parts, but my rear axle housing is as black as the day I bought it.
Do you hose-off the under-carriage when you wash the truck? Still, even so, this rust seems way premature.
rust on drive shaft is pretty normal, it is a part that gets extremely hot while vehicle is been driven. when i rust proof my truck, I noticed they haven't sprayed drive shaft, the entire exhaust system, and they told me the above reason