TH400 / NP208 30 series 34 35 36 37 38 39 Speedometer Gear Housing
TH400 / NP208 30 series 34 35 36 37 38 39 Speedometer Gear Housing
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30 Series GM Turbo 400, NP208 speedometer gear housing, 1.945"
SHIPS FREE in the USA!
(Economy shipping in lower 48 states only)
Fits Driven Gear Tooth Count: 34, 35, 36, 37, 38, 39
40 series Speedometer Gear Housing available HERE!
+ NEW ALUMINUM CONSTRUCTION
+ Aftermarket Direct Replacement
Fits applications with a 1.945"" speedometer gear housing hole in the tail.
NOTE: 700R4 / BOP350 will need a different style speedometer gear housing.
700R4 / BOP350 30 series housing available HERE
GM TH400 / NP208 driven gear tooth counts and colors:
(Do not acquire a gear based on color alone, if you could use some assistance feel free to reach out to jim@speedometer.world )
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Orange |
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41 tooth |
Yellow |
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Tan / White |
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42 tooth |
Dark Green / Green |
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Red / Maroon |
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43 tooth |
Dark Blue / Blue |
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Light Blue / Blue |
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44 tooth |
Grey / Gray |
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Brown |
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45 tooth |
Olive / Green |

WE CAN HELP!
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Send us a brief message with your current application specs and we can help you mastermind a solution!