[curtis73]

Yep. Don't worry about rust. We Pennsylvania folks have holes the size of Christmas Turkeys in our fenders from 20 years of salty roads, so 3 weeks of water is nothing... seriously. Even if it did rust, it didn't rust through anything, so the worst that will happen is you got a little rust inside the rocker panels and it will mostly quit once you dry it out.

Disassemble what you must, but things like glass, rubber, and body panels won't really do any good off the car. You might get down under the rocker panels and drill a couple holes in them to drain them, but they are probably already dry. You'll have to redo the interior, so pull seats, carpet, and dashboard and replace.

Even Canadian cars often don't benefit from dipping. Often times its much easier to just replace the body panels and remove rust from behind hard to reach areas. Dipping is invasive and expensive. Ask me how I know. It took me nearly a year to prep my 66 Bonneville for dipping, (just the body, not the frame) it will cost me nearly $1200 to dip it, and then I anticipate at least two more years of evenings and weekends to do the body work and put it back together. Not to mention the tens of thousands of dollars in parts that have to be purchased to reassemble; bondo, sandpaper, primer, paint, rubber, hardware, soundproofing, etc. Its kind of a last resort. The only reason I'm dipping mine is because its a family heirloom, it should be worth about $30,000 when its done, and it had a very rusty upbringing in PA and Ontario. But as far as just doing it as preventative from rusting, not very cost effective. Wait until it rusts through, then replace that panel.

Just my 2 cents.