I have a 76 F-150 from Arizona with almost no rust. I current live in the northern Illinois area, close the Wisconsin border.
I don't have the money to get rust proofing done currently.
I plan on getting the rust proofing done next year so it would only be exposed to the salt on the roads for one winter.
I was wondering if the truck would get really rusty from driving around this winter.
I don't want to ruin the truck as the body and frame are in really good condition

 

No money to do it right now? Get a pump sprayer (or multiple large cans of WD-40) and periodically douse the entire undercarriage with a light oil.

 

I am curious, what does it cost to get rust proofing done, $150? Do you mean a spray with oil/wax or like painting with liner?

For the first option I think its money well spent considering the thousands rust repair costs.

 

If you're worried about rust and can't afford to rust proof it, sounds like you can't afford to drive it in the winter. You'll spend way more in rust repair than rust prevention. Don't risk destroying a great truck.

 

Agree W/fordguy2100. Try to get a winter beater vehicle, keep in mind Ford isn't making anymore 1973-79 generation Trucks. I grew up in the rust belt and remember delivering newspapers (1968 1971) and seeing a vehicle in three years that you could put your fist through the lower quarter panels, especially rocker panels. More than likely you'll regret not stowing 76 Ford P-U truck for the winter.

 

If you need something cheap you can use Linseed Oil. There are boiled or raw oil. I have used boiled. I used it thinned in a cheap Spray Gun. ( the gun was set with low air prussere and high paint flow)
Be careful not get the oil on Brakes or Exhaust and be VERY CAREFUL if you get Linseed Oil on
flamable material such as a rags of cloth because it could ignite when producing heat.
Otherwise it's pretty harmless and if it's thinned right it would not dissolve old undercoating.

 

Once salt hits the truck it's done. You can't go back and from here on out you will have salt creeping in seams, welds and crevices. Why would you subject a rust free vehicle to the winter roads anyway? If you must then get yourself a Hudson sprayer and use a 75/25 mix of used engine oil and diesel fuel and really get in the seams.

 

I took it in for a quote at LINE-X and they wanted like $400.
They spray this nasty tar crap all over everything.

I have seen videos where people have gotten that tar crap
sprayed under there truck and it actually makes it rust out faster
because it locks in moisture.

 

I'm just gonna let it sit in the driveway over the winter.
It would be a shame to ruin this truck.

 

in northern Ohio it cost me $150 to get Fluid Film sprayed on. its a thick waxy oil. there are other similar brands. that type of product creeps into the seams after application.
for a rust -free truck, best bet it to keep it off the roads in winter.

 

I agree. A garage would be even better. If you must drive, use some rust bucket that's shot anyway.