Axle for F100

[78F250]

I picked up an axle for my F100. My son said it was one of the better 9 inch axles. Any input guys?

 

[Mil1ion]

What does HE mean by better ?

 

[78F250]

I think he meant than other types of axles.

 

[DNFXDLI]

If I recall, there were varying degrees of 9'' axle...spline count, type of case (material).

 

[78F250]

I don't know any of that. I'll have to check it out tomorrow.

 

[lostinfords]

78F250...did not know you were looking for an axle...I have one that came out of a 78 f150....along w/ the bed trim that I removed for a guy from NJ..

 

[Mil1ion]

Post the axle ID tag info and I'll tell you how great it is

They also had bearing differences.
axle splines were either 28 or 31
I prefer 31 because the end of the axle is not tapered.

 

[BKW]

I picked up an axle for my F100. My son said it was one of the better 9 inch axles.

Uh huh, how can he tell by looking at it? And...I noticed something that no one has made a comment about. See Note below.

Post the axle ID tag info and I'll tell you how great it is.
The tag is located at circa 5/6 o'clock under one a the bolts that retains the carrier (pumpkin) to the housing...and there is a tag there.

They also had bearing differences.
Some 1974/79's had an axle bearing/seal combination (D4AZ-1225-A Brg & Seal; D4AZ-1177-A Seal only). The other 1957/86 9's have the seal separate from the bearing.

Separate axle bearing: There are TWO different sizes. And, beginning mid-year 1969, Ford began installing "slim-line" differential bearings.

axle splines were either 28 or 31
F100: 1957/67 are 28. Only 1968/72's with a 9 3/8" ring gear have 31 splines. Other 1968/72's have 28.

1973/79 F100 & 1975/79 F150 could have either 28 nor 31 splines as it depended on the application. 1980/86 are all 31.

Bronco, F100/150 & E100/150: The right/left axle shafts are the same. 1957/79 Passenger Cars use specific right/left axle shafts.

Note: The companion flange of the pictured 9 looks kinda small, are you sure this is a 9 inch?

1962/80 misc. Passenger Cars: Ford offered an 8 inch rear axle, looks damn near identical to a 9.

And, since the OP's F100 is a 1969... Be aware that beginning in 1973 (F100's), 1975 (F150's), the rear frame rails are 37 1/2" wide behind the cab. 1957/72 F100's rear frame rails are 33 1/2" wide behind the cab.

Wider rear frame rails: Longer housing, different spring hanger location.

People swapping 9's into their 1948/56's have to use the 1957/72 F100 9, cuz the later housings cause the rear wheels to stick out past the rear fenders.

 

[78F250]

I only hope the axle I bought fits properly. I am not all into gear ratio and all that. I'll check for numbers but there isn't a tag anymore.

 

[BKW]

I'll check for numbers but there isn't a tag anymore.

I see the tag: It's rectangular...at 12 o'clock in the pic...under a carrier bolt...covered up by grease. Blow the pic up...there it is.

 

[78F250]

I'll degrease the case tonight so I can see things easier. I was looking for an actual metal tag attached to it.

 

[BKW]

I'll degrease the case tonight so I can see things easier. I was looking for an actual metal tag attached to it.

The actual steel ID tag is located on the carrier, under one of the bolts. Plainly visible in your pic at 12 o'clock. If my 66 year old eyes can see it, I would think yours could too.

 

[78F250]

I didn't know what I was looking for. I'm not knowledgeable on axles at all.

 

[78F250]

It looks to read B.24.6

 

[Mil1ion]

 

[78F250]

No tag. The only other thing writing was D2SWC with T underneath it.

 

[78F250]

The actual steel ID tag is located on the carrier, under one of the bolts. Plainly visible in your pic at 12 o'clock. If my 66 year old eyes can see it, I would think yours could too.

I don't know what you see, Bill. I found where a tag was probably broken off. Mil1ion, looks to be broken off from your diagram.

 

[Alvin in AZ]

Yep, looked like a tag to me too, guys. :/
But somehow seemed like it was in an odd place being at the top tho.

Here's what it woulda looked like, if you had one. LOL
http://www.panix.com/~alvinj/file12/Ftags.jpg

Check out the housing differences...
http://www.panix.com/~alvinj/file12/F100-9inch.jpg
http://www.panix.com/~alvinj/file12/F150-9inch.jpg
...the four tags up above show both those pickups were made in the last
week of Jan '75.
1) a plain Jane F150 with a long wide bed.
2) a plain Jane F100 Super Cab with long wide bed.

http://www.panix.com/~alvinj/file12/yoketool.jpg
That Ford9inch "pumpkin" has got a "hooded" pinion bearing retainer.
That thing plus the housing looking heavy, like the F150's would make
me claim the that axle is one of the "better factory-made Ford9inch".

But you know? :/
There's even better ones than that one by two steps, at least!

"Ford never learned how to make the same part twice " -my Chevy buddies

Alvin in AZ

 

[78F250]

Yep, definetly missing. This axle was supposed to be from a 77 F150.

 

[78F250]

78F250...did not know you were looking for an axle...I have one that came out of a 78 f150....along w/ the bed trim that I removed for a guy from NJ..

I wasn't until I got my hands on this 69 F100.