The frame VIN would be stamped on the top right hand rail between the shock tower and just under the cab by the cab mount (like how the he11 you to see it there?).
It may not be stamped vary good, read person had a light hammer to the stamp.
When I had my frame tore down for cleaning & paint I did not know of this VIN stamping so did not look or see it.

So the 2 titles match the dash VIN and that is for a F150 and the part VIN you posted?
So the model box on the title is the F100 but the VIN box the F150 number?
Playing dumb works as it has 2 times before LOL
Dave ----

 

I noticed a slight typo in your message. I believe you meant to say "I know Karl's right". Was there ever any doubt? Fixed it for ya!

 

OK, so if it's on the passenger frame rail between the shock tower and the front cab mount, then it's not going to be visible, to me, until I pull the bodywork and cab off this summer. That is, if it's visible at all. Now, the 351M had a pretty big oil leak based on how the frame, front suspension and the tranny currently looks. So, that stamping may have been preserved.

I only have one old title, the current one from Illinois. I'm going off of the seller's statement about what was on the Arizona title. Once a title is surrendered, you don't get it back (in Illinois).

The dash VIN matches the Illinois title VIN, yes. The partial VIN I posted is the beginning of the VIN for my truck, yes.

The title indicates F-100 as the Model. The VIN (as on the truck and title and as partially posted here) indicates F-150 as Model. The truck has ball joints in the TTB, 5.5" bolt hole circles for the wheels and a 9" differential. I don't think there's anything that definitively proves a truck is an F-100 or an F-150 (except for the kingpin versus ball joint TTBs?).

Playing dumb is probably best.
You know, until I return from the DMV without having an issue, I'm not dealing in absolutes. However, if playing dumb works to my advantage, I'll be sure to give credit where credit is due.

 

Thanks for clearing up the title and the VIN, so it is the "make" on the title that list it as a F100 but the VIN is F150 as dose the dash VIN.
Frame rail VIN other than if under the cab I think you can see it, if it is stamped good, with out removing anything but I have not looked for mine after I seen where it should be.

On the ball joint vs kingpin deal I am not sure on
I am pretty sure that the F100's had kingpins as both of my 81's did.
Now it could be 80 - 82 F150's got ball joints and when the F100's were dropped in 83 all F150's had ball joints by this time from what I seen.

I also think someone said that ALL F150's got the large wheel bolt pattern where the F100's got either small or large.
It did not depend on the GVWR either on the F100's as both my trucks were 4700 GVWR, both 300 six, manual trans, 9" rears and P/S.
Small pattern was a long style side bed, power brakes, AC, dual 19 gallon tanks, small kingpins
Large pattern was a flare side short bed non-power brakes, no AC, large kingpins
Funny how the bigger size truck had the small pattern wheels and kingpins?
It is just what I have found since I got the 2 trucks and what I came across when rebuilding the flare side.

So being you have a 80 F150 I would say it did have ball joints from the get go.
Wonder why Ford did the kingpins on the F100's and not ball joints and then to use 2 different size pins?
Dave ----

 

The Make on the title is: Ford. The Model on the title is: F100

The VIN on the title starts with: F15GRG. The VIN in the windshield starts with: F15GRG. The VIN on the title matches the VIN in the windshield.

I would think that if there was anything shady going on, with the Arizona title, it would have been caught when the previous owner try to title the truck in Illinois.
That's a great question. Perhaps Ford had left-over TIB with kingpins and decided that the "lighter duty" F-100 models would use those already knowing that the F-100 was slated to fade away after 1982.

I've never dealt with kingpins and have the tools to deal with ball joints. So, I guess it worked out OK, for me.

 

It could be why Ford did what they did?

My truck was the first kingpin setup I ever worked on.
The flare side had frozen pins so the plan was to use the front suspension from the parts truck before I knew of the size deal.
I only had wheels that fit the flare and when I went to put them on found the pattern difference
I figured just swap the disc rotor / hub so I could use the wheels. Nope spindles are different and digging deeper found the kingpin and beams different too.
So I had to rebuild my frozen kingpins suspension.

I was also looking to maybe lower the truck and found DJM did not make them for kingpin trucks or our year back then.
They do now but think it is for the small kingpins.
Things you learn when doing a full rebuild
Dave ----

 

TTB means Twin Traction Beam suspension and is the label Ford used for the 4x4 trucks. Twin I Beam (TIB?) is the 2wd versions. No 1980-up F100's ever came 4x4.

 

I need to adjust my terminology, I've been using TTB and TIB interchangeably. Apologies. My truck is not a 4X4.

 

Frame serial number on '86. On these models only the last eight characters are stamped. So, the characters identifying as a 150 are not included.

 

Dave would you know if the 80 - 82 F150 truck's with TIB used ball joints like the later years?
It seams the F100's all had kingpins of them years.
Dave ----

 

Looked up a 1980 f150 on rockatuo and looked for balljoints. They only have them for the 4x4 trucks. I looked up a 1981 and 1982 f150, they do have balljoints listed for a 2wd truck those years.

 

It would be really interesting to see what a Marti report may have on this truck.

 

Hmm, that's interesting...
Yeah, I'm really curious now.

We know it's a 1980 truck based on the 11 character VIN. We know it's an F-150 based on the VIN. I wonder if someone (second owner/DMV person) didn't realize that Ford made F-100s and F-150s at the same time (1980-82) and just assumed that all Ford 1/2 ton trucks were F-100 (as they had been previously).

I also wonder if it's an '80 F-150 cab on a (81-82) F-150 frame. That (partial) VIN number stamping, on the passenger side frame rail, would be a clue. The only part of the bodywork that even remotely looks like it might have been replaced is the radiator support. I guess if you hit something hard enough, in the front, you could mess up the frame horns such that the entire frame would need to be replaced?

That said, did the F-150s come with the 9" differential, too?

 

I would say if both of my 81 F100's had Ford 9" rears the F150's would also.
Dave ----

 

From the Ford F-Series 7th Generation Wikipedia (I know, I know) page:
"From 1980 to 1984, the rear axle was typically a Ford 9-inch axle, with the Ford 8.8 axle being phased in gradually; the 9-inch ended production (alongside this generation) in 1986."

I guess I should have done some research before I posted...