Frame rust...

Im not sure if there is a better forum to post this..but I'm seeking some advice, regarding my trucks condition. My Pete's has a double frame, and in most area's, there is chunky, flaky rust forming (formed) in between the two frame rails.....top and bottom. Motor area is ok, but under the bunk, fifth wheel area back, rust chunks. Would this effect the frames integrity? And do I have to worry about this getting so bad that the frame becomes doombed? Rust is just beetween the two frames..there is a small gap beetween, whitch is normal.

I Thought maybe someone has, or has had a simular experiance.

Oh yeah, truck is an '89 Long Hood Pete 379. Thanks

 

Hmmm. I think the frame rails are still thick, havent coroded much, It's just clumps of rust in between the two frames. Looking at it, it's not bad, and hard to beleive any other double framed truck of the age would not have the same rust. Anything that can be done? New frame rails sounds like a huge($$$$) job.

 

Apparently the rust is normal. All trucks have it, all double frames have it , or get it, the flaky rust chunks in beetween the two frames. Im told there's no way around it...

Anyone else have a double frame? take a look at it, the seams of the two frames. How's it look?