Are you making a change in tire size or gears? TCI offers the most popular speedometer gears, like GM drive gears, to calibrate your speed. These sturdy, plastic-driven gears are available in several tooth counts to fit your application. Determine your appropriate drive gear/driven gear combination and then check out TCI GM drive speedometer gears for accurate speed readings.

Frequently Purchased

ProFlow Engine Stand 500KG Heavy Duty, with 360deg Turntable & Handle, Grey Power Coated, with Drip Tray, Kit

$499.00
Restocking soon
ProFlow Engine Stand 500KG Heavy Duty, with 360deg Turntable & Handle, Grey Power Coated, with Drip Tray, Kit

RTS Billet Converter Kit 10in., 17spl, GM Powerglide, Trimatic, Dual Bolt Circle, 10.75" & 11.50" Each

$680.00
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RTS Billet Converter Kit 10in., 17spl, GM Powerglide, Trimatic, Dual Bolt Circle, 10.75" & 11.50" Each

RTS Converter Mounting Ring Kit 10in., 30spl, GM TH350, TH400, Powerglide & Trimatic with Turbo Spline, Dual Bolt Circle, 10.75" & 11.50" Each

$180.00
Restocking soon
RTS Converter Mounting Ring Kit 10in., 30spl, GM TH350, TH400, Powerglide & Trimatic with Turbo Spline, Dual Bolt Circle, 10.75" & 11.50" Each

RTS Converter Mounting Ring Kit 10in., 245mm, 35spl 4L80E, 4L85E, Kit

$380.00
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RTS Converter Mounting Ring Kit 10in., 245mm, 35spl 4L80E, 4L85E, Kit

RTS Converter Mounting Ring Kit, 298mm, 27spl 700R4, 4L60, 4L60E, Kit

$325.00
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RTS Converter Mounting Ring Kit, 298mm, 27spl 700R4, 4L60, 4L60E, Kit

RTS Converter Mounting Ring Kit, 300mm, 30spl 4L60E, Kit

$325.00
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RTS Converter Mounting Ring Kit, 300mm, 30spl 4L60E, Kit

Proflow Water Pump, Aluminium, Mechanical, OE Replacement, For Nissan RB20/RB26, Holden RB30

$49.00
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Proflow Water Pump, Aluminium, Mechanical, OE Replacement, For Nissan RB20/RB26, Holden RB30

Proflow Harmonic Balancer Removal Tool, Suits Ford Barra, Oem Harmonic Balancer

$125.00
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Proflow Harmonic Balancer Removal Tool, Suits Ford Barra, Oem  Harmonic Balancer

Proflow Harmonic Balancer Installation Tool, With Anti Friction Bearing, Suits LS1, LS2, LS3, Oem & Aftermarket Harmonic Balancer

$27.50
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Proflow Harmonic Balancer Installation Tool, With Anti Friction Bearing, Suits LS1, LS2, LS3, Oem & Aftermarket Harmonic Balancer

Proflow Harmonic Balancer Removal Tool, Suits LS1, LS2, LS3, Oem Stock Harmonic Balancer

$75.00
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Proflow Harmonic Balancer Removal Tool, Suits LS1, LS2, LS3, Oem Stock Harmonic Balancer

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