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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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  #16 (permalink)  
Old 04-19-2011, 09:27 PM
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Quote:
Originally Posted by ctubutis View Post
How do we know this is the correct gear to match up with his pink, 19-tooth DRIVEN gear?
Cuz it's green and has 6 teeth...the same number I have when I'm not wearing dentures.

If the OP isn't sure this is the correct gear, it'll be hard to figure what is the correct gear, because you won't find a 235/85R16 P-Metric tire listed in the parts catalog.

These trucks came with skinny bias-ply's as standard equipment. Radials were optional, but I don't think any P-Metrics were available until the 1990's.

Until someone comes up w/a chart that translates P-Metric sizes to bias ply sizes and/or to non P-Metric radial tire sizes, there's really nothing that can be done to verify if the DRIVE & DRIVEN gears are correct.

I run into this problem all the time in the 1979 and earlier forums where people have installed larger P-Metrics on their trucks. With no Ford parts catalog listing, I haven't a single clue.

However, the usual fix-um is: If the speedo's runnin' fast (in this case), change to a 20 or 21T driven gear, or to a 17 or 18T driven gear if runnin' slow.

The driven gears range in price between 2-4 bucks, 16-21T are available. How far off the speedo is, is the deciding factor on how many teeth one needs to add/subtract.
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  #17 (permalink)  
Old 04-19-2011, 11:13 PM
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Quote:
Originally Posted by NumberDummy View Post
This same catalog is available on a CD from hipoparts.com @ $21.95.
Sweet, I have the 1980-89 Ford 100-500 Series Truck Master Parts Catalog CD on it's way. It will be nice to have that resource available! Thanks again Bill!
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Old 04-28-2011, 02:37 PM
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Update; Gear finally arrived. Does not fit.

Here is the gear, original packaging, and the knurled spacer that the gear should ride on. Gear should be press-fit on the spacer.

Click the image to open in full size.

Here is the gear held over top of the spacer. Hopefully you can see that the inside diameter of the gear is too small to fit over the outside diameter of the spacer..

Click the image to open in full size.

This is exactly the same situation that happened with yellow gear from local dealer (explained in previous posts..)

I really appreciate all the help that Ctubutis, NumberDummy and others have offered. Not complaining. Just frustrated, wondering if I could have explained this mis-fit situation more clearly, would I have stood a better chance at obtaining the correct gear? Oh well..

I'm giving up on this for the foreseeable.. I've got a GPS and it will have to do. Maybe one day I'll find one that fits from a Jy or somewhere..

Thanks again for trying to help. You guys are the Best!
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Old 04-28-2011, 07:35 PM
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Well, thanks for the words, but I feel bad you're not getting what you need.

The only thing me & Bill can do is tell you what the book says came out of the factory, but I could tell you kinda nasty stories about what others had done to my truck the 25 years they owned it.

Point being, God only knows what you could have at this point

Here, read *this* thread:

http://www.ford-trucks.com/forums/33...r-post-up.html

You might take it to a speedometer shop (if such things still exist).
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Old 04-28-2011, 10:17 PM
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Well, you attempted to help. Which is the great thing about this community. You guys took time to try and get me going, and I appreciate that.

Yea, I've read that post. I am the guy complaining about fun things done by PO's, and I'm also that guy who is desperately hacking on his truck to get it going, doing bonehead things that I know are *not the right way*. Some of it I go back and fix correctly, but some of it is left to the wonder of other backyard engineers..

There is a speedo shop in town, but my spidey-sense tells me all I'll hear is - "you need to go to the dealer / junk yard / Borg-Freakin-Warner for that part.."
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Old 04-29-2011, 04:40 AM
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Kind of long-winded, but.....
The green gear you showed in the picture appears to be for the output shaft of a 2 wheel drive transmission.
I did a little digging through my parts book, and on the web, and came up with this:
E0TZ-17285-C BLUE 7 Tooth
1984 F-series NP208
1985 F-series BW1345

Not sure where in Az you are, but Babbitt Ford in Flagstaff, as well as Don Sanderson Ford in Glendale, supposedly have them in stock (although they might have them listed as E"OH"TZ instead of E"ZERO"TZ).

If you're up to making the drive, you might see if the parts match what you need, without having to blindly order something over the web.

Not sure if this will help you, but it might be worth a try.

P.S. I have seen on occasion, the gear would be "faded", due to age, heat, etc.
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Old 04-29-2011, 09:34 AM
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But if he had 7 tooth on the t-case he would need the wine colored 16tooth gear on the cable. It seems like the 6tooth and 19tooth combo would work. But I'm just going by the fact i have the same t-case ratio and tire size as he does. However i can't see my drive gear and i found a calculator in my NPD book and with my wine colored 16tooth driven gear the blue 7 tooth ended up being what i need. I just ordered one from transtarindustries they had 1 in dallas tx is 14bucks +shipping to mn, fingers crossed its what i need, but still cheaper then the driven gear i just found in another state that was way too expensive.
This might help
TCI - TECHNICAL INFORMATION: Speedometer Gears
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Old 04-30-2011, 10:48 AM
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Hey Doug and 84, thanks for the brain power.. I'll be returning the non-fit gear anyway, so it's worth a stab to pick up the E0TZ-17285-C. Doug, your 2wd idea I think is spot on. That would explain the smaller I.D. - I suspect those 2wd trannies have smaller diameter output shafts..

The stripped green gear that came out was at least a proper fit over the knurled spacer. And it is green, for sure, not a faded blue. See pics on pg1 of this thread.. Whether a blue gear has correct # of teeth for my pink driven gear is another question. I might have a better chance at finding alternate driven gears, there seems to be wide variety and decent availability of complete speedo cables with different driven gears. But this whole fiasco is going on back burner for now. The next time I have opportunity to mess with the t-case, I'll know what to do and it shouldn't take that long. Thanks again for the help! Much appreciated. -alex
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Old 04-30-2011, 11:15 AM
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I'll say one more thing.... I've never seen the factory-installed speedometer gears fail like what's in your pictures, which leads me to believe somebody some time ago installed something they thought should work but they clearly didn't know what they were doing.
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Old 04-30-2011, 02:52 PM
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And axman we have the same gear ratio and tire size. Get the wine colored 16t driven gear with the 7 tooth drive gear. I just don't know what the number for it is or the color Number Dumming is in the prosess up helping me out with that. As ctubutis said its probably the wrong parts in there or the case coould have come from another vehicle and has the wrong drive gear, because a 19t is nowhere close to being right.
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Old 04-30-2011, 03:36 PM
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Quote:
Originally Posted by 84-6.9L View Post
And axman we have the same gear ratio and tire size. Get the wine colored 16t driven gear with the 7 tooth drive gear. I just don't know what the number for it is or the color Number Dumming is in the prosess up helping me out with that. As ctubutis said its probably the wrong parts in there or the case coould have come from another vehicle and has the wrong drive gear, because a 19t is nowhere close to being right.
But, you have a C6, and as I have told you multiple times in the P/M's we've exchanged. The DRIVE gear of the C6 is only supplied with the output shaft, as it is made as part of it.

You cannot get a speedo DRIVE gear for any car/truck/Bronco/Econoline with a C6, regardless of what year it is, or what vehicle it's installed in, or whether it's 2WD or 4WD!

There is no listing in any FoMoCo parts catalog, simply because the DRIVE gear of a C6 is part of the output shaft, it is not replaceable by itself. The parts catalogs make this clear.

I'm sorry to be so blunt, but you just don't seem to understand!

ctubutis: I need help!! Will you please scan and post the following: Text, Section 172, pages 16 and 17 = Drive/driven gears: 3.54-1 rear axle ratio.

Maybe...after seeing the parts catalog listings, 84-6.9L will believe what I've told him a gazillion times.

EDIT: I emailed and asked Chris to do this.
-----------------------------------------
drumfield: As you noted, EOTZ-17285-C is only listed in 1984 for the NP T/C. There isn't a listing in 1984 for the BW T/C.

But, it is listed in 1985 for the BW TC.

EOTZ-17285-C = MSRP: $27.38 // PARTSGUYED.COM price: $19.72 / Only Babbitt & Sanderson have it in AZ.

Even though E0 is correct, today, it could be listed as E0 or EO, and when read off, either is pronounced E OH and has been since day one.

I'm sorry the OP got the wrong gear, I was going by the color of the gear (green) that the OP had.
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Old 04-30-2011, 04:13 PM
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No problem for me, Bill. Was just trying to help out a fellow FTE-er with a suggestion. I hope you don't think i was trying to make you look bad, because that was definitely NOT my intent, especially after the help you've given me (as well as all the other people over the years).
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Old 04-30-2011, 04:18 PM
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Quote:
Originally Posted by drumfield View Post
No problem for me, Bill. Was just trying to help out a fellow FTE-er with a suggestion. I hope you don't think i was trying to make you look bad, I did not think that...at all.
Thank you for your help! If it wasn't for you, the OP would still be up a certain creek without a paddle. I rep'd you, and everyone else that reads this thread should too.
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Old 04-30-2011, 04:25 PM
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Thanks, Bill. (Aw, shucks )
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Old 04-30-2011, 05:11 PM
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Ok it took a few days but i finally found something about a half hour ago, this lists separate drive gears for the bw1345 transfer case.
1345 Transfer Case Borg Warner Parts Illustration and parts list! - Drivetrain.com
Heres a pick of the critter
Ford Bw1345 Bw 1345 Transfer Case 7t Speedo Gear Blue | | en135

Number Dummy i know this is what your talking about ON THE C6 THE DRIVE GEAR IS MACHINED ONTO THE OUTPUT SHAFT. I get it and I'm not arguing that fact. But the after slow cooking the fact theres no listing for a drive gear for 2wdOR4wd I'm thinking it doesn't list a gear for the c6 4wd because the 4wd c6 doesn't have a gear. I don't think the transmission type has anything to do with this since its contained in the transfer case. Axman has the gear removed and in his hand
Heres what you were probably talking about

Ford Speedometer Gears

Drive Gears
6 teeth - machined into output shaft (C6 only)
7 teeth - machined into output shaft
8 teeth - machined into output shaft
9 teeth - machined into output shaft

And I'm sure the 85 bw1345 is the same as the 84bw1345
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Old 04-30-2011, 05:11 PM
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