Man did I screw up.

Anyway, was replacing the oil seal at the end of the extension housing, and there was this black seal with ridges around the output shaft you could see with the extension housing removed. Don't ask me how, but that seal is now damaged beyond usability and I can not find it on any parts diagram.

Tried searching for "rear pump seal," "output shaft seal," and all that looks familiar is the extension housing seal I already have in good shape. I am looking for this black seal with ridges that wrapped around the output shaft.

Does anybody know what part I am talking about so I can find a replacement?

Thanks

 

The seal is tapered, and the part of it that narrows has ridges or ribs.

 

This is it, it used to be a ring, but it's been sliced.

 

The seal I was replacing was this one:

National Oil Seal Kit 5203: Advance Auto Parts

I took one off I dentical to that, but it almost looks like the part pictured above is the boot off an old seal that someone lost inside there once. Does that make any sense?

 

Must be a spedometer drive gear . . . any idea where to find one?

 

See if you can get a bit better of a pic of it to confirm, but your local Ford dealer should still be able to get it. Just bring the old one in, the replacement will also be black. Ford color codes the speedometer drive gears for ratio.

 

TCAA-4676-A (replaced B3TZ-7A011-A) .. Output Shaft Seal / Timken part number: A-1205-G-683 / B3TZ-7A011-A: 3.066" O.D. x 2 1/8" I.D. x 11/16" wide / Obsolete

1953/58 F250/350 w/3 speed Ford-O-Matic / 1959/64 F350 with FX Cruise-O-Matic / 1965/67 F100/350 352 w/MX Cruise-O-Matic / 1968/72 F100/350 360/390 C6 / 1973/76 F100/250 360 4WD C6

The original part number: B3TZ-7A011-A as I recall, matches your description. It was replaced by TCAA-4676-A which is a pinion seal.

GREEN SALES CO. in Cincinnati OH has 50 B3TZ-7A011-A = Call and ask for a description: 800-543-4959.

At the end of the speedometer cable where it fits into the trans is an O-ring (87036-S94), it's about the same diameter as a nickel.

The speedometer DRIVE gear on the output shaft is either nylon or steel / The speedometer DRIVEN gear at the end of the cable could also be nylon or steel.

 

Need this, Thanks Bill

 

Bill,

Thanks, but that's not the seal. It's not a spedo gear like I thought either. It's the spline seal listed in this diagram towards the end of the output shaft, but 1) I still can't find one anywhere, and 2) I am not sure I need it with the drive shaft on my 1966 F-100. The tranny came off of a 72 F-250. Most pictures I see of teardowns of a C6 do not even show this seal anywhere to be found, and most diagrams don't include it. Also, when I found it on my output shaft it had been pushed to the center of the shaft so I don't see how it was doing anything there - not sure I even need it. What do you think?

 

I thought thats where you were going. These bump fords had 2 different yokes. Spline (slip in) and a bolt in.
I'll just sit over here in the corner and wait for this token to drop...

 

Thanks for the pic, because now I know what you're asking for.

Look at 7A011 in the pic below, compare it to the pic above.

Applications and specs for the original part number: B3TZ-7A011-A (Ford: Output Shaft Seal) listed in post #7.

SOEBY MOTOR CO. in Walhalla ND has 2 = 701-549-3711.

OWEN FORD in Jarratt VA has 3 = 434-535-8515.

WESLEY OBSOLETE PARTS in Liberty KY has 4 = 606-787-5293.

GREEN SALES CO. in Cincinnati OH has 50 = 800-543-4959.

 

thanks i'll let you know how I make out. That should be the seal, but is a different shape. the inside of mine is smooth also, and I think the one in your image may be corrugated on the inside to fit the ridges on the shaft.

 

I'd say, The newer style will have better sealing less prone to leakage.

Orich

 

I'm just hoping that it is a newer version as opposed to a different part altogether. thanks