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John Deere Tractors Discussion Forum
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g-70 reduction gears

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barry

03-21-2004 20:25:58




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Does anyone know if you can interchange the pulley gear and reduction gear from a G to a 70 to mix up the gearing any? Thanks




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DON

03-23-2004 08:15:30




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 Re: g-70 reduction gears in reply to barry, 03-21-2004 20:25:58  
I ALWAYS WANTED TO SEE IF THE REDUCTION GEAR AND CLUTCH PULLY GEAR, OFF A 70 DIESEL WOULD FIT MY 70 GAS TO SLOW IT DOWN. ANYBODY TRIED THIS?? THE INPUT SHAFT TO TRANSMISSION IS THE SAME, THE REDUCTION COVER IS DIFFERENT IF I RECALL. DON



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Mike Aylward

03-22-2004 05:43:28




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 Re: g-70 reduction gears in reply to barry, 03-21-2004 20:25:58  
Barry, I'm not sure if they can be interchanged between the G and the 70's. I don't have the parts books in front of me right now but I am thinking the G's have a wider pulley gear than the 70's do. Not saying it couldn't be done, but would take some ingenuity. Mike



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buickanddeere

03-22-2004 06:40:51




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 Re: Re: g-70 reduction gears in reply to Mike Aylward, 03-22-2004 05:43:28  
Mike

Good to see you back after the gotg. That reduction gear set swap from a 70D into a G/70 gas is worth further examination. 1st gear and reverse is so fast in those tractors, and if the tractor is apart, why not slow them down to 87% of it's origional speed. The later "A" can also be mixed and matched to slow them down some as well. I wonder what other two cylinders share the same shaft spline size and centerline spacings in the 1st reduction? Deere likely saved money where possible and used common tooling.

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JohnDeere_John

03-22-2004 09:12:04




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 Re: Re: Re: g-70 reduction gears in reply to buickanddeere , 03-22-2004 06:40:51  
Did the 70 gas ever have a creeper gear? I had a 70 diesel and I`m sure it was same gear ratio as the G model I have. Jon



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