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

Speedometer drive gear removal

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Old May 15, 2012 | 01:46 PM
  #1  
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Speedometer drive gear removal

Hello all,

I did some searching but couldn't find definitive information on how to do this. I have removed the tailshaft on the transmission but can't get the snap ring off so I can get the drive gear off. Anyone have any tips or tricks that I can try to get this stupid thing off? I sat for an hour trying and couldn't get enough leverage on it. If you like I can take a picture of it.
 
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Old May 16, 2012 | 11:43 AM
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Thought I'd give this a little bump to see if anyone had any ideas.
 
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Old May 16, 2012 | 11:54 AM
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What transmission?
 
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Old May 16, 2012 | 11:54 AM
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Borg Warner T-19 transmission 3-speed with granny gear
 
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Old May 16, 2012 | 11:58 AM
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I'll look in the shop manual later this afternoon/tonight and see what I can find (unless somebody does it before me).
 
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Old May 16, 2012 | 11:59 AM
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Sometimes you need to push in or pull out on the gear, to relieve the stress on the clip so it can slide off.
 
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Old May 16, 2012 | 12:31 PM
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I guess my biggest problem is I can't open the snap ring far enough to get it around the shaft to pull it off. Thought maybe there was a special tool to get it.

The snap ring doesn't have any holes in it for the regular pliers to get ahold of. Maybe I can take a small drill bit and drill them into the ring....
 
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Old May 16, 2012 | 12:42 PM
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Doesn't the clip have a "tab" on the back (closed) side? Slip a small screwdriver under that, and it should slide off.
 
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Old May 16, 2012 | 12:47 PM
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Hmmm... I guess I haven't looked but it didn't seem like it. I'll look tonight.
 
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Old May 16, 2012 | 12:50 PM
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From: Lost
It should look like this:


At least, that's what the factory correct clip looks like.....
 
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Old May 16, 2012 | 01:20 PM
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LOL. Yeah, that's for the driven gear. I'm talking about the drive gear on the output shaft on the transmission. I can't count how many times I've replaced the driven gear to try and get the speedo to read correctly. So, now I'm trying to replace the drive gear which looks like this:

 
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Old May 16, 2012 | 01:28 PM
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From: Lost
OIC. I misunderstood, thought you meant the *driven* gear.
The snap ring for the drive gear will require (most likely) snap ring pliers. There's 2 types, 1 has "pins" to fit in holes in the snap ring, and the other has "slots" for the square ends of the ring to fit into. The type of ends on the ring dictate which type pliers are needed.
These rings fit quite tightly, so as to insure they stay put, so the special pliers are almost always needed.
 
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Old May 16, 2012 | 01:44 PM
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I have a pair of snap ring pliers but they have pins. I don't think I've ever seen the slot type before. Googling now.... I suppose I could always use 7 or 8 flathead screwdrivers...
 
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