Cavity anti rust stuff?

[Daytona R/T SE]

What is a good product to spray inside rocker panels, frame rails, etc?

Cavity wax or something like that?

Gun to apply it?

[khodne]

3M Rust Fighter is what I've used.

http://3mcollision.com/3m-rust-fighter-i-08892.html

[Dino]

What is a good product to spray inside rocker panels, frame rails, etc?

Cavity wax or something like that?

Gun to apply it?

Google cavity wax gun.  They typically have an assortment of nozzles, rigid and flexible.  It's worth having a good, dedicated wax gun.   

[Patronus]

Internal frame coating from Eastwood? Comes with a straw.

[moparnut]

I used the internal frame spray from Eastwoods.Still using , its been working well.The tip sprays 360 degrees,the hose is 24" long.

[1973rallye]

Another thread on the same topic. FYI

http://www.dodgecharger.com/forum/index.php/topic,98908.0.html