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OK, I got 'er did. NAPA had sections of steel line with the correct ferrule for $10. I used my handheld tube bender to give it contours similar to the factory tube. Engine started with no purging or troubles. I appreciate all the advice.

Ok, tank is fully removed. I've removed the crushed section of metal fuel line. Hopefully I'll have the section made tomorrow. I should expect to have to purge air from the fuel system after all of this? I've read the procedure and even found an old Army training video but I haven't actually...

Hm, I do have a Colliflower shop that does this. Good point.

It's an early M998 that has been re-engined with the 6.5l but kept the 3-speed TH400. To my eyes, the fuel tank is original. The truck has the driveshaft parking brake which means the tank is the early style.

I could use some assistance interpreting this parts drawing. Basically, I want to purchase the two metal fuel lines coming directly from the fuel tank. These connect to rubber sections a little further upstream which then possibly turn into metal sections again if I interpret the diagram...

Ok, I got the fuel tank free. The fuel fill stub was just hung up on the frame. A gentle twist and it dropped down. I was right- Somehow the metal fuel line sections got pinched between the front fuel tank strap and the transfer case. Years of jostling and chafing ate a 2-3mm hole in the metal...

Ok, so the rear of the fuel tank should drop down. It's hung up on something or I'm just being too gentle with it. It was hung up on the short rubber hose that the fuel fill pipe connected to but I removed that and it's noticeably more free but still won't quite drop down. I know the tank will...

The drive shaft is removed. I think I'm just not wiggling this thing quite right.

Ok, I have the TM and I've disconnected everything the manual calls for but this tank won't quite come out. We're talking the old style fuel tank. I've removed the driveshaft to make life easier even though the TM didn't say to do it. Which end typically releases first, the front or the rear...

Oh, the access panel doesn't give enough access to replace that top panel on the tank itself? That's a bummer. I guess it's just for replacing the fuel sending unit. Well, before I cut or drop anything, I want to crawl in there and find the definitive source of the leak. I may be just over...

On that note, I do not have the fuel tank access mod. I have seen it posted somewhere. Is it in the TM section? Would I be able to fit a wet towel on top of the fuel tank while I cut out the access panel with a angle grinder/cutter as an ignition safety measure?

Sorry to dredge this up. I have a leak, might be the gasket might be the fill tube. It definitely happens when the tank is more full than less full. My truck is very old, has to be 80's because it has the old mirror mounts. I have the old parking brake (disc on drive shaft). What's the latest...