8050 shifting problem
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=157448
Printed Date: 20 Aug 2025 at 9:18pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8050 shifting problem
Posted By: uptegr74
Subject: 8050 shifting problem
Date Posted: 20 Jan 2019 at 10:45pm
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We have an 8050 Allis that won't shift on the high/low/park lever. It was stuck in neutral, so I pulled it home. I have the seat and floor plates out. Both cables function fine, but with cables disconnected I can't move the shifter sticking out the top of the transmission. Any guidance would be greatly appreciated. Thanks
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Replies:
Posted By: Mikez
Date Posted: 20 Jan 2019 at 11:37pm
Welcome to the forum, there's some good info on here, someone will help you.
What other allis stuff you have.
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Posted By: uptegr74
Date Posted: 21 Jan 2019 at 7:10am
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We have a 7020, 7030, 7040 and two 8050s.
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Posted By: darrel in ND
Date Posted: 21 Jan 2019 at 7:18am
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I am not sure what to tell you about the shifter problem, but someone on here will be able to. But, welcome to the forum, and you have quite the respectable line up of AC tractors. Are they all daily users in a farm/ranch operation.. ? Darrel
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Posted By: MACK
Date Posted: 21 Jan 2019 at 8:36am
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Sounds like it didn't come all the way out of one range. Remove snapring holding shifter in and look down in hole. Notches may not be lined up. If not, use a long screwdriver to line them up. MACK
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Posted By: uptegr74
Date Posted: 21 Jan 2019 at 9:21am
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Thanks. A couple get daily use for choring. The rest come out during hay season.
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Posted By: uptegr74
Date Posted: 21 Jan 2019 at 9:27am
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Thanks Mack. I was able to gently persuade it into high and low with a mallet. It's just to stiff for the cable to shift it. Is the snapring under the rubber boot?
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Posted By: Dave H (NE)
Date Posted: 21 Jan 2019 at 9:40am
yes it is under the boot . I have seen cables worn to the point that you can't shift them at all. you may want to check that out.
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Posted By: Mikez
Date Posted: 21 Jan 2019 at 10:25pm
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Well hope you stick around after you get it fixed
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Posted By: uptegr74
Date Posted: 21 Jan 2019 at 11:49pm
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Well with my day job I haven't got it fixed yet.
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Posted By: uptegr74
Date Posted: 27 Jan 2019 at 1:32pm
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Finally got the snap ring in the shifter pulled up out of the transmission. Nothing looks out of place. Does anyone know what my problem with not being able to shift into high low would be?
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Posted By: Kevin in WA
Date Posted: 27 Jan 2019 at 2:50pm
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Are you sure the side to side cable is moving the lever into the high-low slot completely?
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Posted By: DrAllis
Date Posted: 27 Jan 2019 at 3:07pm
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I think in this case, you need to clean off all the dirt around the cover to the range transmission and remove it for a look see. You should be able to get in there with a pry bar and shift the fork completely forwards and backwards remembering that the shifting dogs have to line up on the gears to complete the shifting of the coupling/collar. There could be something wrong with the shifting rails, which would hinder fork movement. I can't say I've ever had one do as you are describing. I've replaced lots of worn out shift lugs for PARK position and the interlock pin and that's about it.
Remember, just because the shift cable moves in and out unhooked, doesn't mean it can do that under a load......i.e. move a shift lever and fork.
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Posted By: uptegr74
Date Posted: 28 Jan 2019 at 1:35pm
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Thanks for all your input. I pulled plate off top of tranny and I have alot of chipped teeth, so we're splitting the tractor.
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