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4th Gen Ram Tech2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
My wife and I went to Hawaii for our honeymoon. Many of the cars there have major rust issues due to all the salt in the air. My rental Wrangler was less than a year old and had more rust than my 5 year old wrangler back up in MI at the time. I didn't expect that.
Just using a "Rust-O-Lium" type of paint shouldn't make a real difference on the driveshaft would it? As long as you spray the whole thing in say 2 light coats??
I can't see the weight of some spray paint really throwing it off that much. Worst case you sand it off? I haven't tried it though.... Don't really have the need out here. I also lived by the beach for 3 years and went offroading on the dunes every other weekend and never had a problem with rust on my Ranger. Just made sure to rinse it off underneath after each trip.