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Old 09-13-2010, 03:58 PM
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Speedometer

I have a 59 gmc fleet option half ton pickup I just put in a th350 and my speedo cable doesn't fit is the some way of makin it work

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Old 09-13-2010, 04:59 PM
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Get a cable and housing from a car that a T350 came in.....The end that goes to the speedo is likely the same....on the early ones anyways
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Old 09-13-2010, 05:32 PM
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But will it still work with my stock speedometer in my truck
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Old 09-13-2010, 07:53 PM
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What part of the cable won't fit? The key at the end of the cable or the fitting that screws onto the tranny.?
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Old 09-13-2010, 08:10 PM
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The cable won't on to the bullet that come from the tranie
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Old 09-14-2010, 06:20 AM
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So, what I am understanding is the male end of the cable. , The part that spins when the tranny turns it. That won.t fit into the bullet?
Is the cable end diameter to large. Is it single keyed or double keyed.
The reason I ask is because you may be able to modify the inside of the driven gear that is in the bullet to accept the cable end.
The driven gears are very inexpensive. So ,if you make a mistake you can get another for under $10.
I have a th350 from the 70's and I mated it to a 31 chevy cable in this manner. The screw on fitting on the cable was the same size as on the th350.. They haden't changed it in 30 yrs.
What I did was file out the inside of the driven gear until the cable end fit into it with a little force. I had to open up the keyway slot a little to.
Of course you could always use your GPS device to keep track of your speed .
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Old 09-14-2010, 06:28 AM
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check out this site for info
http://www.redrider.us/Speedometer_Gears.htm#350
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Old 09-14-2010, 11:50 AM
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The cable will tread on to the bullet but it is double groove and the bullet is single grooved thanks for the info
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Old 09-14-2010, 07:50 PM
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My above post was wrong the cable will thread on but the cable is circular and the bullet ( driven gear) is square opening so is there a difference in driven gear or all th350 the same I believe the bullet is out of a 74 gmc halfton pickup and suggestion are welcome and will the file idea still work

Thanks for all the help

Bryan
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Old 09-15-2010, 06:29 PM
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Bump... Any help is welcomed
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Old 09-16-2010, 09:35 AM
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TH350 driven gears all use the same type of square female hole for the cable.

All TH350 bullets have the same threads.
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Old 09-17-2010, 02:24 PM
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Quote:
Originally Posted by Cape Cod Bob

Hey thats actually a really good site!
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