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91 700r4 Speedo gear

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Old 07-29-2017, 06:25 PM
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91 700r4 Speedo gear

What gear would I need for this 700r4 with 3.42 diff and 215/65/R15 tires?
Old 07-29-2017, 07:43 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 91 700r4 Speedo gear

Depend on the drive gear color, you would need a new vss too.
https://www.thirdgen.org/forums/engi...3-42-90-a.html
http://www.tciauto.com/tc/speedometer-gear-calculator
Old 08-01-2017, 07:51 PM
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Re: 91 700r4 Speedo gear

Thanks!
Old 10-21-2017, 05:31 PM
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Re: 91 700r4 Speedo gear

So I've finally decided it's time to change the gears however there's a problem. I've got 3.42 and 26" tires. A combo I've found is 15t and 40tooth. But the vss won't hold a 40tooth gear. How far off would the speedo be with a 39 tooth gear? Is there an adapter somewhere for a 40-45 tooth to be able to fit in the vss?
Old 10-21-2017, 05:53 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 91 700r4 Speedo gear

Standard motor products sc13
Old 10-21-2017, 06:19 PM
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Re: 91 700r4 Speedo gear

Thanks again! my bad on not paying attention that you posted that before sorry!

1 last question. Is this a 2 pulse vss?

Last edited by Faolan; 10-21-2017 at 06:29 PM.
Old 10-21-2017, 06:54 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 91 700r4 Speedo gear

I think all 90-92 are 4k ppm




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