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Re: 62-65 speedo gears [Re: Bull1tt] #2597867
12/28/18 02:51 AM
12/28/18 02:51 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
^^^ trick!


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Re: 62-65 speedo gears [Re: Charrlie_S] #2598043
12/28/18 04:36 PM
12/28/18 04:36 PM
Joined: Jan 2003
Posts: 25,718
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,718
Rio Linda, CA
Originally Posted By Charrlie_S
I've never looked that close to see if it could be done, but.
Would it be possible to use the stock speedo trans gear/cable assy, and put the ratio adapter on the other end of the cable, then have a short cable to connect the ratio adapter to the speedo head? Similar to the way mopar did the cruise control.


Yes, they make inline reducers that have threaded input/output or crimp in the cable. Speedo shops use them to get the cable speed dead on when there's no room at the trans output.

Here's a nifty idea to keep the stock speedo and drive it with a GPS input.

https://www.speedhut.com/ecommerce/product/2585/SPEEDBOX™-GPS-VSS-to-Mechanical-Drive-Speed-Converter


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Re: 62-65 speedo gears [Re: viperakron] #2598143
12/28/18 09:33 PM
12/28/18 09:33 PM
Joined: Jan 2005
Posts: 1,606
Pgh, PA
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Bull1tt Offline
top fuel
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Joined: Jan 2005
Posts: 1,606
Pgh, PA
Use the link three post up...

Re: 62-65 speedo gears [Re: Bull1tt] #2598187
12/28/18 11:28 PM
12/28/18 11:28 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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Joined: Nov 2003
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bought used/never tried it. Stewart Warner made in US of A.

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live every 24 hour block of time like it's your last day on earth
Re: 62-65 speedo gears [Re: RapidRobert] #2598191
12/28/18 11:32 PM
12/28/18 11:32 PM
Joined: May 2012
Posts: 1,817
South Bend
John Brown Offline
top fuel
John Brown  Offline
top fuel

Joined: May 2012
Posts: 1,817
South Bend
Originally Posted By RapidRobert
bought used/never tried it. Stewart Warner made in US of A.


What ratio is that one? They made hundreds of different ones.


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: 62-65 speedo gears [Re: John Brown] #2598197
12/28/18 11:50 PM
12/28/18 11:50 PM
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Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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It has 1.2020X stamped


live every 24 hour block of time like it's your last day on earth
Re: 62-65 speedo gears [Re: RapidRobert] #2603434
01/08/19 02:42 PM
01/08/19 02:42 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
I opened it up & the teeth count is (in to out/upper left to lower right): 11 teeth/18 teeth on the middle idler/14 teeth. EDIT I ain't sure if this (procedure) is right but 11/18 is .61111 and 18/14 is 1.28511 and 1.28511-.61111 = .6746 (underdriven???). MORE EDIT With more work if my math is right it will reduce the tooth count 27.27%, speeding up the speedo that % amount

Last edited by RapidRobert; 01/09/19 01:11 AM. Reason: missed something critical

live every 24 hour block of time like it's your last day on earth
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