drive shaft
#2
Super Moderator
Jeep was too cheap to coat it, so you just let it build up surface rust and let it ride. I took some Ospho to mine and it isn't rusty anymore.
#4
JK Junkie
Yes, it is normal. They rust, then the rust layer becomes the protective coating. Kind of like guard rails on the highway. I chose to paint mine. I did it will the Jeep was on jack stands and the engine was running in gear and 4-lo so that the spray was even and balanced.