Ross - The ring gear and the pinion gear come as a set - when produced they are checked and ground to produce the correct fit.
I have never seen a new ring gear or pinion gear sold separately.

 

Could be a mistake and was supposed to be a 5, and someone goofed it up, that's been known to happen. But I suspect it's 1954, based on your truck, and if it's original to the truck or not. The other digits could be the sequence number or something.

 

Curiosity got the better of me, so I ran out and scrubbed my axle to see the build date: 11 18 52B

That strike anyone as strange?

PS -- my truck's sequence number is 20,813; total F-1 production in '52 was 108,xxx.

 

Out of how many factories? If 5 factories used their own sequence numbers, yet the total production is 108,000....would each factory get up to around 21,600 or so at the end of the year?

 

Huh, I never thought about it that way. Still, I would expect them to be producing '53 models in mid-November '52?

 

Here's food for thought: Mercury cars from 49-51 used the same axle as the F1 and had the same 5x5.5 BP. I do not have spring pad measurements of this car, but since my rear came with both pads mounted (and a '76 9" under the pickup), I can assume this rear end came from a car, and the PO welded the truck pads on? or vice versa? One will never know for sure. However, since the date doesn't match the pickup, or the fact that the 8BA engine is January 1951, and has a car pan, I guess it's possible my rear came from a Mercury car.

 

Then - That rearend makes your Trucks rearend look fat?

What kind of bellhousing does the motor have?

 

Oh, it's fat alright, lol. Abe Lincoln said so.

The bellhousing is the hogshead type, and has the matching serial number as the frame and glove box. The history behind this F1 gets stranger everyday, lol. First it was the frame itself with C part numbers (and 1/2 ton WB), but the title/serial number says Y (one ton), but the numbers match. Then it was the 8BA, with newer style dist. that tipped me off, and then finding out it has a car style oil pan, and lastly finding the date code being Jan 16th, 1951. And now the rear end that came with it, uninstalled, is a Dana 44 from 1950.

At least it has a monkey face!

 

I'm confused about the truck you're refering to, Havi, is it the '50 "F-100" in your signature? It should have a new style dizzy, but I'm assuming you mean 8BA vs 8RT as far as the engine?

You can "possibly" narrow down the engine's origins by looking at the valve keepers/springs. '51 was the start of the New Style design, which has shorter springs and an extra piece under the keepers to rotate the valves. It also wouldn't have hardened seats, but that is more work to see.

My '52 also has a '51 car engine, complete with narrow belts. Talk about a mish-mash: '51 car block, EAB heads, Merc oil pan (had me hoping for a while), the only original part AFAIK is the intake manifold.

 

Ross, by default, the garage albums only go back to 1950, and only label them as F100 So, yes the "50 F100" actually 1948 F1. The 8BA has the newer style dist., spray bombed blue, and had car 8CM style water pumps with home-made risers for mounts. Plus car pan, etc... the G-16-G code on the top tells me it's January 16th 1951. I know this engine isn't original to this truck. I'm thinking the rear axle isn't original to this truck neither. The PO I bought it from got it from another who did all the previous work, so in talking to the PO, he knows nothing.

I really enjoy taking over PO projects, lol. As far as restoring this pickup, it won't be truly original by any means, but will hopefully look original.

 

hi new b here just started 60 f100 but am parting out 79f150 4+4 351m ran this winter auto trans sold transfer case have the rest if intrested thanks

 

allso do you know were i can get now bed for my 60 thanks. cool sight i think i will like this lots of info here thanks.

 

hi new b here just started 60 f100 but am parting out 79f150 4+4 351m ran this winter auto trans sold transfer case have the rest if intrested thanks

 

So... Fiftysixfordf250 (Steve) and I have been trying to work a deal for a low-ratio D-44 carrier in a spare axle he has. It's a 3.73 and is clearly marked as a 44. BUT... the carrier measures a little over 7" overall, and the extra length appears to be in the short side; instead of 1.780", it is around 2-7/8". So the info above doesn't appear to work for all 44's. (Darn it)

 

I got mine on jackstands soaking in MMO. I tried counting the teeth while everything is still rusted in there, but I'm not getting accurate enough to be sure. If I'm one tooth off on the pinion, I'll end up with either 3.9 or 3.7, so I've tried to take it all apart to be sure. (the stamped ratio is on the downside, where I can't see it)

I'll be making a puller for the axles this week at work. A word of advice, if your rear is gonna sit outside for several years, leave the cover on it.