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91 SPEDO TO AN 85???

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Old Feb 22, 2010 | 12:20 AM
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jls172008
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91 SPEDO TO AN 85???
I HAVE TWO THIRD GENS A 91 FIREBIRD (WRECKED) AND AN 85. THE 85 HAS THE 85 MPH SPEDO, THAT DOESNT WORK BC THE TRANS I PUT IN THE CAR HAS AN ELECTRIC PLUG, SO THE MANUAL GEAR DOSENT WORK. HOW MUCH TROUBLE WILL SWITCHING THE DASHES BE? ANY HELPFUL TIPS WOULD BE GREAT!!!
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Old Feb 22, 2010 | 07:07 AM
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JamesC
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 91 SPEDO TO AN 85???
Originally Posted by jls172008
I HAVE TWO THIRD GENS A 91 FIREBIRD (WRECKED) AND AN 85. THE 85 HAS THE 85 MPH SPEDO, THAT DOESNT WORK BC THE TRANS I PUT IN THE CAR HAS AN ELECTRIC PLUG, SO THE MANUAL GEAR DOSENT WORK.
Remove the VSS from the donor trans, install a speedo sleeve (gear housing) along with the the correct drive and/or driven gear, install the cable and drive into the sunset.

You'll find the sleeve and gears at the following site:

http://www.transmissioncenter.net/sp...____va.htm#350

JamesC
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Old Feb 22, 2010 | 05:41 PM
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Re: 91 SPEDO TO AN 85???
could you break that down a little more vss?
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Old Feb 22, 2010 | 05:52 PM
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JamesC
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 91 SPEDO TO AN 85???
Originally Posted by jls172008
could you break that down a little more vss?
The piece that bolts into the trans on a car equipped with an electronic speedo is the VSS (vehicle speed sensor). Simply remove it and bolt in the pieces designed for a cable-driven speedo.

JamesC
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