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I got bad speedo drive advice

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Old Sep 14, 2007 | 11:46 PM
  #1  
redliterunner's Avatar
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Joined: Mar 2004
Posts: 430
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From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
I got bad speedo drive advice

I just put a T-5 in my automatic car, and someone on here told me the mechanical speedo drive from my automatic would just swap right into the T-5 tranny which has an electric drive.

Well it didn't work, the mechanical drive is great big and the electric one is little. Is there an mechanical drive that will fit in this T-5? Right now I'm driving around with my speedo cable dragging the ground.
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Old Sep 15, 2007 | 12:35 AM
  #2  
dr1's Avatar
dr1
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Joined: Jan 2004
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From: Connecticut
Car: '89 Firebird Formula
Engine: 305 TBI
Transmission: T5
Re: I got bad speedo drive advice

https://www.thirdgen.org/forums/tran...SS+part+number
some helpful info I had bookmarked, but in any case you need the correct sleeve and gear, apparently theres 2 sets
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Old Sep 15, 2007 | 12:42 AM
  #3  
redliterunner's Avatar
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Joined: Mar 2004
Posts: 430
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From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
Re: I got bad speedo drive advice

Well that will definitely be useful, but I was talking about the diameter of the holes that the drive slides into. My auto tailhousing with the mechanical drive had a hole probably a half inch bigger than the hole in my T-5 tailhousing. I need a mechanical drive for the smaller hole. Is there such a thing?
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Old Sep 15, 2007 | 12:44 AM
  #4  
Apeiron's Avatar
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Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: I got bad speedo drive advice

Yes. That's the "Original Driven Gear Sleeve" in the picture.
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Old Sep 15, 2007 | 12:59 AM
  #5  
redliterunner's Avatar
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Joined: Mar 2004
Posts: 430
Likes: 1
From: Huntsville Alabama
Car: 89 IROC convert.
Engine: tpi 305
Transmission: T-5
Axle/Gears: 3.42 10 bolt
Re: I got bad speedo drive advice

Oohhh Yeeaaaahhh. Now I see. dr1 underestimated my ability to overlook the obvious. I'll visit Mr. Goodwrench tomorrow.
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