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John Deere Tractors Discussion Forum

4430 quad shift modification

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big roller

02-21-2021 21:28:08

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Some years ago I saw a post with instructions on how to modify the shift positions on a 4430 quadshift. It resulted in the 3-4 gears being moved to the 1-2 position and vice versa. Moving the 3-4 gear shift close to the 1-2 reverse gears is much more loader friendly. Then the reverse is the same speed as the adjacent gears (3 and 4) on the shifter (Makes forward and reversing much nicer). Otherwise reverse is way faster then 1 or 2 and you go backwards much too fast. I have been trying to find those instructions again. Is there anyone who can help?

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02-23-2021 07:59:45

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 Re: 4430 quad shift modification in reply to big roller, 02-21-2021 21:28:08  
Youll have to check the parts book, but the shifter cam out of a synchro 4630 or maybe a 4520/4620 would work.

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02-22-2021 06:43:00

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 Re: 4430 quad shift modification in reply to big roller, 02-21-2021 21:28:08  
Instructions? I wouldnt call them instructions. But if thats what you want then youll need to procure the top shifter cam from a synchro range tractor and swap that in, hook your linkage back up and you will have effectively switched positions with your high and low range.

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big roller

02-22-2021 19:23:32

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 Re: 4430 quad shift modification in reply to MikeJM, 02-22-2021 06:43:00  
Thanks. Will that work for a 4640 quad shift as well?

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Tim S

02-22-2021 16:10:37

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 Re: 4430 quad shift modification in reply to MikeJM, 02-22-2021 06:43:00  
This is true,, years ago Deere sent me the wrong cam,, after I got the job back together the shift pattern was switched,,after I saw what happened I had to go back in and switch the cam,, which I did down through the cab floor,,not fun but it can be done..

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