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05-05-2020, 12:46 PM | #1 |
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Join Date: Dec 2018
Location: Holland MI
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Model A main drive gear, educate me
I have this 3 speed transmission sitting in my garage and the main drive gear is smaller than the main drive gear in my doodlebug project. What do each of these fit, just curious.
Top one is 1-1/8" 6 spline, the bottom is 1-3/8" 10 spline |
05-05-2020, 01:13 PM | #2 |
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Location: So Cal
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Re: Model A main drive gear, educate me
Top looks like for a multiple disk clutch.
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05-06-2020, 12:31 PM | #3 |
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Location: Midland Park,N.J.
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Re: Model A main drive gear, educate me
appears to be part # A7017 AR transmission main drive for 28 multi disc clutch.
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05-07-2020, 10:35 AM | #4 |
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Join Date: Jun 2015
Location: Red Deer, Alberta
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Re: Model A main drive gear, educate me
What kind of engine is that?
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05-07-2020, 04:21 PM | #5 |
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Location: Virginia
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Re: Model A main drive gear, educate me
Wow that is neat, describe what is there a little bit. You have done a lot of work!
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05-07-2020, 05:10 PM | #6 |
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Re: Model A main drive gear, educate me
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The 1 3/8" 10-spline is the common size for most of the early Fords. Last edited by rotorwrench; 05-07-2020 at 05:26 PM. |
05-10-2020, 12:13 AM | #7 |
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Join Date: Dec 2018
Location: Holland MI
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Re: Model A main drive gear, educate me
It is John Deere LUC motor off a 12A combine the motor was also used an the L and LA tractors, on the motor there is a clutch off an LA tractor then an adapter I made to marry the Model A 3 speed transmission to the clutch.
It's a glorified scooter I am making for my 90 year old father to tool around in at tractor shows, they don't allow golf carts at most of the shows and my father can only walk around for an hour then he's done for the day. The problem is I can only get this to down to 9 mph which is really moving when your in a crowd of people. I'm currently looking for a 4 speed transmission to use with an underdrive I currently have to hopefully get this down to walking speed. |
05-10-2020, 09:08 AM | #8 |
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Join Date: Jun 2010
Location: San Antonio, Texas
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Re: Model A main drive gear, educate me
You can also look for a low gear rear axle ring & pinion but it might not be low enough.
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05-10-2020, 09:54 AM | #9 |
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Location: Red Deer, Alberta
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Re: Model A main drive gear, educate me
If'n you could squeeze another 3 speed transmission in that driveline you could really slow it down. A friend built one years ago and when both transmissions were in 1st gear it barely moved when the engine was idling.
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