Elec speedo years
Joined: Dec 1999
Posts: 5,964
Likes: 37
From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Camaro: 90-92. Firebirds were earlier.
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
I can definately say the '86 Firebird has a mechanical speedo, don't know about '87-up. 
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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
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Joined: Jul 1999
Posts: 10,950
Likes: 27
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
87+ Firebirds, and 90+ Camaros. But, the speedo units are completely interchangeable. You can put a mechanical speedo in a 91 trans, for example, or vice versa.
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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
Thread Starter
Junior Member
Joined: Jan 2001
Posts: 11
Likes: 0
From: Georgetown Tx. USA
About how expensive would it be to make a 91 700R4 elec speedo work in a 82Z?
Would I need a different speedo gear and housing? or is there more to it? I've never seen the elec speedo setup on a tranny.
Would I need a different speedo gear and housing? or is there more to it? I've never seen the elec speedo setup on a tranny.
Member
Joined: Nov 2000
Posts: 440
Likes: 0
From: Cleveland, OH and Flint, MI
My 86 trans am parts car definately had an electronic speedo. I cant be absolutely sure that it was there stock, but the buffer box was mounted in stock location and the wires were run thru the harnesses like stock.
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Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Cfabe, if the buffer box was on the back of the speedometer, it was a non-digital unit. My '86 has the yellow box back there, too.
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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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