2021 Rust, Baja driving, ect

Wondering what you guys make of all this rust? The truck is from New York where they heavily salt the roads, but I’ve been driving it hard for a few months through Baja. Upon getting back I’ve probably done 4-5 car washes and undercarriage washes.

THE rust is coming in pretty strong.

Should i go straight to the fluid film? Or try to sand this stuff off at all, before applying?

 

That's not bad. Spend some time under there hitting it with a wire wheel on a drill, a bit of rust converter/primer, then shoot some black on it and be good to go.

 

I’ve seen of people complaining about the weld rust on post-Covid tundras - this must be what they’re talking about. It appears to be coming from the inside out but I live in the desert so I don’t know shit about rust.