Print Page | Close Window

Allis chalmers 7000 Pulling Tractor

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
Printed Date: 30 May 2023 at 4:54pm
Software Version: Web Wiz Forums 11.10 -

Topic: Allis chalmers 7000 Pulling Tractor
Posted By: Jm_hall_471
Subject: Allis chalmers 7000 Pulling Tractor
Date Posted: 27 Jun 2022 at 7:03pm
If you are pulling a allis 7000 do you remove the 1 2 3 power shift out of the transmission if you are pulling in light limited super stock. If so how is it done
Thank you for the help in advance

Posted By: DrAllis
Date Posted: 27 Jun 2022 at 7:42pm
Light-Limited-Super Stock to me means over 1,000 HP, so yes, that clutch must go. A coupler needs to be fabricated to connect to whichever range you want...under drive-direct drive or overdrive. Approx 20% jump between each range.

Posted By: Jm_hall_471
Date Posted: 27 Jun 2022 at 8:00pm
Much appreciated

Posted By: Mikez
Date Posted: 27 Jun 2022 at 9:56pm
Welcome to the forum. We like to see pictures and hear about your orange tractors

Posted By: DougG
Date Posted: 03 Jul 2022 at 10:00am
Always heard the 7000 was a one of a kind with the Powershift setup it had- and they were based on a 200 tractor- so the powershift can be removed , interesting

Posted By: DrAllis
Date Posted: 03 Jul 2022 at 6:12pm
All original Power Director tractors that were hydraulically activated were two-speeds, direct-drive (high) and 20% under-drive (low). The model 7000 tractor had a 20% over-drive added to the concept. The whole torque housing is completely different with this new design and the PTO is fully independent and 540/1000 RPM only. Amazingly, the length of the torque tube is still 39 inches, the same as previous models (180-185-190-200).

Posted By: Jm_hall_471
Date Posted: 10 Jul 2022 at 9:05am
Is there any info on how to make a coupler of some sort for the powershift gears. Thanks

Posted By: tbran
Date Posted: 10 Jul 2022 at 2:29pm
Hey Doc , ever do any comparison with the gears between the 180 / 200 vs the 7000 as to a retrofit ?   I noticed the 7000 do not use the bushings on the pinion...

When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: DrAllis
Date Posted: 10 Jul 2022 at 7:31pm
You know, it's been since 1977 that I had my first maroon 7000 transmission apart.   It had a bad pinion seal transferring oil one way or the other. I had my second one apart in the early 90's for reverse gear on the counter shaft having the teeth all chewed up from a heat treat issue. They have been  that good !! Two 7000 transmissions in 40 plus years !!  So, no I did not compare parts to the 180-200 transmissions, but I know the gears are all wider and I'm thinking the inner diameters may be larger too.  The width would be the deal breaker in the end I think.

Posted By: zero61
Date Posted: 21 Aug 2022 at 5:02pm
I’ve been running a 1980 black belly for the last eight 8 years I’ve done a lot of changing inside of my transmission tried to upload a picture but it wouldn’t

Posted By: zero61
Date Posted: 21 Aug 2022 at 5:10pm

Posted By: DougG
Date Posted: 21 Aug 2022 at 5:15pm
If I remember, this one has a 5.9 Cummins which does a great job !

Posted By: zero61
Date Posted: 21 Aug 2022 at 5:24pm
Yep 5.9
Blew up 2 301 motors

Posted By: Mikez
Date Posted: 21 Aug 2022 at 10:52pm
Welcome to the forum. Thanks for sharing 

Posted By: Jm_hall_471
Date Posted: 05 Sep 2022 at 12:32pm
We are lost at the transmission. How did you build the transmission to hold up to the power?

Posted By: zero61
Date Posted: 05 Sep 2022 at 1:52pm
I have no problems sharing what I’ve done to my tractor. send me an email at
And I’ll shoot you my phone number. and it’s a whole lot easier to send pictures and tell you how I did it on phone

Posted By: zero61
Date Posted: 05 Sep 2022 at 2:10pm
Or go to Facebook
Look up Robert Clark
Or tuff times pullin team
Get me that way!!
Sending pics on here is impossible on a phone…

Posted By: DrAllis
Date Posted: 05 Sep 2022 at 5:00pm
I have no idea what JM hall is trying to do, but I am used to LLSS tractors running road gear, which is direct drive. If you want to go faster than that, then you are getting into the custom gear making area. A true model 7000 drive line would have room for an over-drive box right under your feet where the Power Shift clutch assembly was. Road gear in the tranny with an overdrive speed-up ahead of it.

Posted By: zero61
Date Posted: 05 Sep 2022 at 5:06pm
Yes!! A 7000 is 27.885 to 1. Strait thru in 4th.
I had two gears made on input and runs low side. 25.4 to 1 is result. Only have 1 gear but hey I’m a do it yourselfer low budget puller.

Posted By: DrAllis
Date Posted: 05 Sep 2022 at 5:32pm
7000, 200, 190XT all the same ratio in road gear.....27.88 to 1.

Posted By: zero61
Date Posted: 05 Sep 2022 at 5:56pm
I’ll do my damned to try and put on here with my granddaughter help to show how I done it..
Lot of 7000 to use as pullers

Posted By: DougG
Date Posted: 08 Sep 2022 at 6:27pm
Wonder what chassis Bernie Platz has under him ? Its 7000 sheet metal and I believe a 426 with multiple turbos - I think this dont know for sure ; curious if its a 7000 driveline ?

Posted By: SteveM C/IL
Date Posted: 11 Nov 2022 at 12:50pm
It was a 190 rear-end 2 years ago

Posted By: MACK
Date Posted: 16 Dec 2022 at 9:25pm
Power through trans. is no problem, gears will hold. Weakest point is ring gear moving away from pinion. This can easily be fixed by a girdle around right bearing housing and reinforce out side of bearing housing.                 MACK

Print Page | Close Window

Forum Software by Web Wiz Forums® version 11.10 -
Copyright ©2001-2017 Web Wiz Ltd. -