200 Third Gear Jump
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=159980
Printed Date: 12 Sep 2025 at 7:50am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 200 Third Gear Jump
Posted By: Red Bank
Subject: 200 Third Gear Jump
Date Posted: 13 Apr 2019 at 7:32pm
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My 200 was jumping out of third. I replaced the shifter fork which was broken and the 185 shifter rod and the detent springs and added the other springs that Dr Allis recommended. Still jumping out of third going downhill but not as bad and I can hold gear shift and it tries but won’t jump out. I replaced with all AGCO parts. I thought the gears looked ok I was surprised at reverse and can’t believe it doesn’t jump out as bad as it looks. What do I do next to fix the problem?
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Replies:
Posted By: DrAllis
Date Posted: 13 Apr 2019 at 7:37pm
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Did you rework the shift rail to shift it in deeper ??
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Posted By: Red Bank
Date Posted: 13 Apr 2019 at 7:41pm
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I bought what I thought was the improved 185 shift rod that would do that?
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Posted By: DrAllis
Date Posted: 13 Apr 2019 at 8:05pm
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The improved 3/4 shift rod shifts deeper into 4th gear, which is a good thing. For a deeper shift into 3rd, you'll have to modify it yourself.
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Posted By: Red Bank
Date Posted: 13 Apr 2019 at 8:22pm
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Fourth gear did do better and didn’t jump at all. How do I modify it for third? I read in the service manuel of the different ways to check the measurements and then it said to bend the forks accordingly? Is this what I need to do?
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Posted By: DrAllis
Date Posted: 13 Apr 2019 at 9:11pm
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Bending the forks is a bad idea and will compromise 4th gear engagement. Weld the 3rd gear detent on one end and regrind the detent 1/8" for deeper engagement. Shift cover dowel bolts go in the left front and right rear corners.
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Posted By: Red Bank
Date Posted: 13 Apr 2019 at 9:39pm
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Yes I put the dowel bolts in the right place. So the improved 185 shift rod still needs to be modified?
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Posted By: Jack(Ky)
Date Posted: 13 Apr 2019 at 9:40pm
I agree with the Dr. I just did one for a 200 last year and it fixed it.
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'59 D14 '68 170 Diesel '81 7020 40 All Crop
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Posted By: DrAllis
Date Posted: 14 Apr 2019 at 6:15am
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The late 185 shift rail had a deeper engagement of 4th gear. Third gear may still need to be also made deeper (if you are having trouble), which A-C or D-A or AGCO hasn't done. Tractor transmissions are like women...……..no two are exactly the same. Now, if you wanted to modify your old shift rail TWICE, you could do that. I have always chosen to get the best parts I can and change them if needed.
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Posted By: Red Bank
Date Posted: 14 Apr 2019 at 10:00am
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Is it possible for me to send you the old one to modify and then I will remove the new one and send it to you also? I am trying not to have the tractor down long.
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Posted By: Jack(Ky)
Date Posted: 14 Apr 2019 at 12:35pm
Yes, I can do that. My address is Jack Proffitt 1544 Old Mulkey Rd. Tompkinsville, Ky. 42167 It will run $75.00 plus shipping. I usually charge $150.00 if you send the whole trans top. If you don't care mark the groove that needs changing. Without having the trans top here I might get it mixed up. Thanks
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'59 D14 '68 170 Diesel '81 7020 40 All Crop
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Posted By: Red Bank
Date Posted: 14 Apr 2019 at 12:42pm
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Thank you for the offer Jack I am going to see what I can do with it.
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