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Jm_hall_471 
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Joined: 27 Jun 2022
Location: Tennessee
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 Topic: Allis chalmers 7000 Pulling Tractor
Posted: 27 Jun 2022 at 7:03pm |
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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
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DrAllis
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Joined: 12 Sep 2009
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Posted: 27 Jun 2022 at 7:42pm |
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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.
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Jm_hall_471
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Location: Tennessee
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Posted: 27 Jun 2022 at 8:00pm |
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Much appreciated
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Mikez
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Joined: 16 Jan 2013
Location: Usa
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Posted: 27 Jun 2022 at 9:56pm |
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Welcome to the forum. We like to see pictures and hear about your orange tractors
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DougG
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Joined: 20 Sep 2009
Location: Mo
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Posted: 03 Jul 2022 at 10:00am |
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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
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DrAllis
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Posted: 03 Jul 2022 at 6:12pm |
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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).
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Jm_hall_471
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Location: Tennessee
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Posted: 10 Jul 2022 at 9:05am |
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Is there any info on how to make a coupler of some sort for the powershift gears. Thanks
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tbran
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Joined: 14 Sep 2009
Location: Paris Tn
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Posted: 10 Jul 2022 at 2:29pm |
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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...
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When told "it's not the money,it's the principle", remember, it's always the money..
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DrAllis
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Posted: 10 Jul 2022 at 7:31pm |
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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.
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