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speedometer gears?

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Old Jan 16, 2008 | 05:24 PM
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PAFORM350's Avatar
PAFORM350
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From: Fleming Island, FL
Car: 1992 Formula 350
Engine: 5.7 L98
Transmission: 700R4
speedometer gears?
Anyone have any ideas what speedo gears I would use to correct the speedometer in my 1992 Formula 350? It has 4.10 gears. Thanks.
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I am using 26 X 10.5 MT ET Streets in the rear
Last edited by PAFORM350; Jan 16, 2008 at 05:27 PM. Reason: Automerged Doublepost
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Old Jan 16, 2008 | 06:09 PM
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87zjeff's Avatar
87zjeff
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From: louisville, ky
Axle/Gears: '01 3.42 10 bolt
Re: speedometer gears?
bowtie overdrives has a good speedo calculator.
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Old Jan 16, 2008 | 06:11 PM
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Apeiron
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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: speedometer gears?
What transmission do you have?
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Old Jan 16, 2008 | 08:32 PM
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PAFORM350's Avatar
PAFORM350
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From: Fleming Island, FL
Car: 1992 Formula 350
Engine: 5.7 L98
Transmission: 700R4
Re: speedometer gears?
It's the one that came with the car. 700R4 ?
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Old Jan 16, 2008 | 08:36 PM
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Kevin91Z
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: speedometer gears?


15 and 44 for a 700R4

7 and 22 for a T5 and aftermarket T56
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Old Jan 17, 2008 | 03:02 AM
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Pro Built Automatics
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From: Calimesa, California, U.S.
Re: speedometer gears?
With 4.10's, you will need an external adaptor, as 45 driven and 15 drive is far as the ratios go. You would need a 47 driven, if it were available.
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