8000 series rear axle size
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=133957
Printed Date: 14 Jun 2025 at 4:10am
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Topic: 8000 series rear axle size
Posted By: AC7060IL
Subject: 8000 series rear axle size
Date Posted: 18 Jan 2017 at 2:11pm
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Norm Swinford's book list all the rear axle sizes for the 7010-7080, but nothing for the 8010-8070. Reason I ask - I want to know which 70xx rear wheel centers will swap onto which 80xx? Is my follow guess close to right: 7010 & 8010 = 3.625" axle, 7030 (7040) & 8030 = 3.75" axle, 7050 (7060) & 8050 = 3.75" axle, 7080 & 8070 = 4.0" I'm also assuming the 80xx may have similar 70xx long/ special axle options?? |
Replies:
Posted By: Jordan(OH)
Date Posted: 18 Jan 2017 at 3:15pm
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Just keep the original clamps with the tractor, center doesn't matter. |
Posted By: Lonn
Date Posted: 18 Jan 2017 at 3:58pm
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Both the 7030 and 7050 are 3.625. I don't know if any other 7010 thru 8070 shared that axle size. And yes from what I've read here before you just need the correct wedges. The wheel hubs are all the same. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Lonn
Date Posted: 18 Jan 2017 at 4:00pm
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Oh and if I remember right, the 7060 and possibly the 7045 and 8050 could be had with 4" long axles. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Arcs and Sparks
Date Posted: 18 Jan 2017 at 7:26pm
| I believe that the 210. 220, 7010, 7020, 7030 and 7050 are all 3 5/8" ( 3.625" ) . I know that the wedges I removed from a scrap 7050 replaced my pooched 220 wedges without issue. There was a slight difference in the 7050 wedge design. The 220 had all 3 holes in the "non key way" wedge tapped for the jack bolts and the key way wedge had none of the 3 holes tapped for the jack bolts. The 7050 wedges had the outer 2 holes in each wedge half tapped for the jack bolts. Using the jack bolts had equal success with both wedge designs. I looked at a 7020 in the same boneyard but it's wedges were only a 2 hole in each wedge design. The 7020 axle did measure 3.625" but I did not like that 2 hole design. |
Posted By: tbran
Date Posted: 18 Jan 2017 at 8:46pm
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the only way to KNOW what size axle was on a 7000 or 8000 is to measure them,,, short axles, long axles and Mexican hat duals yielded different size axles installed to match the duals. These units are at the age many wheels have been changed.. We have seen duals mounted with the wrong wedges...
------------- When told "it's not the money,it's the principle", remember, it's always the money.. |
Posted By: Unit3
Date Posted: 18 Jan 2017 at 11:12pm
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Dealer lit. on the 8070's tells about 3-3/4" axles if it had FWA. Ours are 1985's and the have FWA and 4" rear axles. ------------- 2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C |
Posted By: AC7060IL
Date Posted: 19 Jan 2017 at 8:49am
I appreicate your input. So there were changes thru the years. A Jack bolt question - Is a Jack Bolt an item I need to purchase from a Dealer or can I use a similar sized grade 8 type?
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Arcs and Sparks wrote:Posted By: Acfarm
Date Posted: 19 Jan 2017 at 9:43pm
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The jacking bolts are a special thread so you will either need to get a set of have some made. ~Warren
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