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Tucker Sno Cat speedometer


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It looks like the speedo is 2 1/3 off (mph and odometer)- probably due to the gear reduction caused by the size of the sprockets driving the tracks.  They're not much larger than the brake drums. 

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On 3/2/2017 at 8:50 PM, MBFowler said:

It looks like the speedo is 2 1/3 off (mph and odometer)- probably due to the gear reduction caused by the size of the sprockets driving the tracks.  They're not much larger than the brake drums. 

You're right, the gear in the pontoons is only about 10 inches in diameter and there is further reduction in the transfer case. Dividing by 2.33 is for the odometer. 

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Julie and I ran across this one in Roanoke VA last week at the Virginia museum of transportation  

1368993158_snowcat.jpg.974e2c1470544979839bec145b7464b5.jpg

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