04-11-2016, 03:51 PM | #1 |
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Join Date: Aug 2011
Location: Veazie, Maine
Posts: 29
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rear end
on my 37 rear end there the numbers stamped where I understand the gear ratios would be and it is 1 39 and a inch or two away is stamped 2 and that is all how can you tell the ratio from this?
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04-11-2016, 04:12 PM | #2 |
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Join Date: May 2010
Location: East Shore of LAKE HOUSTON
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Re: rear end
If it is actually an 11-39, it would indicate it originally had that wonderful 3.54 ratio that everyone wants. DD
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04-11-2016, 05:10 PM | #3 |
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Join Date: Aug 2011
Location: Veazie, Maine
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Re: rear end
thank you DD I will go with that
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04-11-2016, 05:16 PM | #4 |
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Re: rear end
Might be worth checking. There are several ways to go about it.
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04-11-2016, 06:21 PM | #5 |
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Re: rear end
Oops. I saw the heading and just had to post.
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04-11-2016, 07:32 PM | #6 |
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Re: rear end
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04-12-2016, 08:23 AM | #7 |
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Location: Pittsford NY. USA
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Re: rear end
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04-12-2016, 08:02 PM | #8 |
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Location: South Texas
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Re: rear end
On most banjo housing the ring and pinion tooth counts were stamped at the factory on the bottom rib. You divide the bigger number by the smaller number. In the example above 39 divided by 11 equals 3.54. Common numbers are 9 with 34 which is a 3.78 and 9 with 37 which is 4.11.
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04-12-2016, 08:42 PM | #9 |
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Join Date: Nov 2012
Location: Wichita KS
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Re: rear end
I was referred to physically checking the ratio. You can jack one wheel up and count tire rotations (which I would have to look up because I have never done it). Or remove the fill plug and mark a tooth on the ring gear and then slowly turn the gear and count the teeth.
Note: Here is the link - http://www.btc-bci.com/~billben/reargear.htm Last edited by JSeery; 04-12-2016 at 08:50 PM. |
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