boxing jeep frame

[orange150]

got the jeep torn down to the bare frame and am going to paint and box where/if its needed. So where are the best spots to box in a frame and what is the best material to use? I feel like I have read people using 12ga stock. Also should I pre-paint the inside side of the frame and steel? Trying to use as much rust prevention as possible.
Thanks

 

[Jeff B]

Clean it weld it then fill with the expandable foam, if your gonna run brake lines or wireing through it put some pvc pipe in there before you fill with foam but after welding.

 

[orange150]

cool, hadn't heard of that and def. wouldn't have thought of it!
Thanks!

 

[hdroadkingc]

I wouldnt use the expandable foam. It holds water and will cause it to rust.

 

[stevehayden]

Expandable foam holds water better than a sponge. Found out after damage was already done.

 

[Jeff B]

I wouldnt use the expandable foam. It holds water and will cause it to rust.

I didn't know that

 

[orange150]

glad im broke enough to not have done that yet..

 

[Chris_M]

places like eastwood sell a kit for rustproofing inside body cavities, should work just as well inside a frame rail, and then there is always weldable primer you can paint on before you weld it up.

 

[orange150]

^thats something like i was thinking, can you pick that stuff up locally at a tractor supply or something

 

[49willys]

Foam is a horrible idea! Weld through primer works very well. Making templates and good welds are key. If it is down to a bare frame be very careful welding. It is very easy to warp. email me if you have more questions chrism281@gmail.com