So I was in the salvage yard the other day and in the very back buried in the weeds I found an old truck chassis that I am puzzled about. It is a complete chassis with a Ford 390 not the FT 391. It has a C6 auto tranny and divorced NP205 T-case. The front axle is a passenger side diff. axle that I didn't fully check out so I don't know what it was. It was burried in scrap but their was enough of the engine sticking out that I could read the engine family tag and see that it had a passenger side diff. The rear axle is the massive Dana 70 HD dually. Does anyone have an Idea what kind of truck this is or was? Oh, if it helps anyone figure out what it is, it had leaf springs all around. The springs were definetly not the usual 73-79 3" wide type. They appeared to be 2 1/2" or slightly more but for sure they were not a full 3". The rear leaf springs were 13 springs per pack and the rear had air bags as well. Anyone have a clue what might have sat ontop of this particular drivetrain at one point? The yard owner is a friend and most anything old like this and not commonly picked for parts he lets me take for less than $400 so I would like to know what I might have at my disposal. It would make a nice log hauler/skidder for my woods if I can revive it.

 

SThe keywords are "divorced transfer case."

It was a 1973/76 F250 4WD aka High Boy:

Offered with a Regular Cab: Cab & Chassis; 8' Styleside pickup or 8' Flareside pickup / Crew Cab: Cab & Chassis; 6 1/2' Styleside or Flareside pickup.

The Regular Cab has a 133" wheelbase. I forget what the Crew Cab's wheelbase is, but it's much longer.

240 (1973/74) or 300 I-6 or FE engine (360 as original) / Divorced NP205 transfer case / C6 or New Process 435 4 speed / Dana 44 (or rare Dana 60) front axle / Dana 60 Rear Axle / 2 1/4" wide leaf springs front/rear.

The rear frame rails (behind the cab) are 33 1/2" apart. The "Air Bags" are not original.

Dana 70 with SRW's or DRW's were only offered in F350's, so the axle's been swapped.

No F350 4WD's until 1979, none have a divorced transfer case and these trucks used Dana 60's front/rear.

 

With a passenger-side front diff? That's no highboy configuration I ever saw

 

The keywords are not "divorced T-case", I forgot to mention the keyword is "Huge". This thing is no highboy I ever saw. It is over 200" wheelbase and the framerails are over 12 inches tall and beefy as heck. I have never seen a highboy with a passenger side diff. so I am thinking this is some sort of medium duty truck with a 4wd conversion like "Napco" or "Marmon-Harrington". I know it's a D70HD rear because it bares all the marks of a D70 but this thing goes beyond other D70's that I've seen. It has webbing as thick as that of a Dana 80. I was comparing the two side by side and the D70 has got some major reinforcement unlike others I've seen. Whatever truck it use to have on it was something huge because this thing looks mean and ready for some work. I will have to dig out all the scrap from around the front end to check it out closer. Does anyone else have a clue what this truck was?

 

You must read the details I wrote again. I think you missed a few key-words.

 

The ONLY Ford trucks that came with an FE engine, C6 tranny and with a divorced transfer case were 1973/76 F250 4WD's, commonly refered to as High Boys.

Speaking of missing keywords...

Where in post #1 did you make any mention of the 200" + wheelbase, and/or the 12" depth frame rails? No see um. If you had...I would not have said it was an F250 4WD.

Beginning in 1971, Ford offered factory installed 4WD in F600's. Prior year are Marmon-Herrington conversions, but...

No F600 came with an FE engine or a Dana 70 rear axle. The V8 gasser engine would have been one of the FT (1964/78) engines, which looks like an FE engine.

There were 5 different rear axles offered in these trucks. Standard equipment was the Timken Model F106 rated at 15,000 lbs.

The Timken Model H170 rated at 17,500 lbs was an option. Other options were two different Eaton two speeds (Models 15201 & 16244), and a single speed Eaton Model 17121.

The only front driving axle available was the Rockwell-Timken Model FDS-75-HD-X-1.

 

I didn't mention in post one about the wheelbase and size of framerails. Thats why I said I FORGOT to mention the keywords or don't you read good? The part I was refering to that you need to read more carefully is the part when I said it had a passenger side diff. I know the years the 390 was in trucks but I've never seen it in a truck with the differential on the other side. I guess the truck could really be anything with a 4wd conversion seeing as how there are all kinds of oddball old trucks out there and lots of companies that use to do 4wd conversions. I was just hoping someone would have a definite answer so I could maybe look into restoring the truck if I get the time instead of turning it into a wood hauler. No need to get pissy here guy, everyone misreads things from time to time. I forgive you.

 

Just did a google image search for "f600 4x4" and they do have passenger-side front diffs, but rockwell axles?

 

Like I said before, I'm not sure of the front but it doesn't look big enough to be a rockwell of any sort. I doubt a truck with a 70 rear would have a rockwell front. Either this truck is some super rare bird or else it was customized decades ago by someone at home.

 

If I remember correctly my L-9000 had a 12" frame rail
Somewhat heavy chassis for such light running gear

 

Parts catalog pics usually don't show the front driving axle mounted into the frame, so it's kinda hard to determine which side is which.

Because of this, I didn't bother to use the driving axle to determine what the rest of the truck is.

The only way to determine what it was originally, is...if you can find the VIN stamped on the frame rail.

On some trucks, it's on the top of the drivers side frame rail adjacent to the steering gearbox. On others, it's on the top of the passenger side frame rail near the front cab mounting point.

btw: I read just fine, and I gave you a lotta info. As far as being pissy, I've spent 40 years looking up parts for the clueless...so my disposition/patience/tolerance has suffered as a result.

 

btw: I read just fine, and I gave you a lotta info. As far as being pissy, I've spent 40 years looking up parts for the clueless...so my disposition/patience/tolerance has suffered as a result.[/quote]I see. I know where you're coming from.

 

Someone I know mentioned it might be a 4x4 motorhome chassis.

 

If you go back out to the chassis and can see the frame rail you might look and see if there is a vin # stamped on it.