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Discussion Forum

Rear end ratio

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Glenn Winter

03-30-2001 08:28:20

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I cannot find what the rear end ratio for a 9-2-8n is.I got the shop,owners manual,i can't find that info anywhe .Thanks Glenn

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Dennis 9N/2N

03-30-2001 09:36:34

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 Re: Rear end ratio in reply to Glenn Winter, 03-30-2001 08:28:20  
I just counted the teeth on my spare 9N/2N differential. The ring gear has 40 teeth, pinion has 6. According to my calculator that is about 6.67:1. However, unlike a car, the transmission always provides some speed reduction. High gear is not a "straight through" coupling, but uses the countershaft, just as first and second do. I am speaking here about the 9N/2N. I do not know the gear ratios of the transmission, but I am sure someone on this board does.

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03-30-2001 10:24:07

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 Re: Re: Rear end ratio in reply to Dennis 9N/2N, 03-30-2001 09:36:34  
According to the operators manual 1951-52 8N speed@1500rpm

1s't-73.33-1 -- 2.77mph

2n'd-57.04-1 -- 3.56mph

3r'd-41.45-1 -- 4.90mph

4th- 19.86-1 -- 10.23mph

rev.-44.64-1 -- 4.55mph

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