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Allis 7000 differential
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Empirestate View Drop Down
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Joined: 15 Feb 2026
Location: CNY
Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Empirestate Quote  Post ReplyReply Direct Link To This Post Topic: Allis 7000 differential
    Posted: 22 Sep 2026 at 5:45pm
I made my first post back in the spring about my 1978 allis 7000. The opion was I had a differential problem. I'm finally ready to tackle it. Question, do I have to split it to get the differential out? Thanks for any help.
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Joined: 12 Sep 2009
Points: 23518 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2026 at 6:43pm
No split. Start by jacking/blocking up under the drawbar bail area so both rear wheels are off the ground. Remove both rear wheels and set aside. Until that is done, you really cannot do anything else. Lift arm housing comes off. Axles get pulled out 6 inches and bull gears drop down. Rear end cover gets removed. Brake assemblies get removed. Bull pinion shafts/gears get pulled. Bull gears then can be lifted out to access a couple differential bolts. Diff carriers get removed both sides. Diff rolls out the back hole.
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Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Empirestate Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2026 at 7:01pm
thanks a lot dr. I was hoping a split wasn't required. I'll post my progress.
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Joined: 12 Sep 2009
Points: 23518 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2026 at 7:07pm
I've only done one like this. 7000's were pretty good.
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Joined: 14 Sep 2009
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Points: 3729 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tbran Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2026 at 9:49pm
Uh, don't excited - what the good doctor just accurately described is not any better than 'splitting' the tractor. You are talking some heavy stuff... you will find who your real friecnd are :-) 
When told "it's not the money,it's the principle", remember, it's always the money..
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Joined: 15 Feb 2026
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Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Empirestate Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 3:49am
I know it's not a walk in the park, but it's  got to be fixed.
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Getting off to a great start will be getting those rear wheel bushings broken loose from the rear axles. This REQUIRES the proper special AC pusher bolts and patience and penetrating oil and a sledge hammer swung correctly.
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Joined: 28 Feb 2013
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Points: 9800 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 7:39am
Originally posted by DrAllis DrAllis wrote:

Getting off to a great start will be getting those rear wheel bushings broken loose from the rear axles. This REQUIRES the proper special AC pusher bolts and patience and penetrating oil and a sledge hammer swung correctly.

   I found that a 1 inch drive impact wrench helps  gets them off very well.
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
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Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Empirestate Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 12:21pm
i've been soaking it the last few days.I do have the pusher bolts. we'll see how easy it breaks loose.
What do you use the 1 inch impact on? The pusher bolts.
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Joined: 12 Sep 2009
Points: 23518 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 12:29pm
I'd be very careful using a 1 inch gun on those three small diameter bolts. On a 7000/8000 series larger bolt, yes.
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