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nanuk 
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 Topic: Need info jack bolts
Posted: 11 Oct 2024 at 4:00pm |
I am in the process of getting ducks in a row for some maintenance
I want to widen my tread some, so I can just clear a 6' swath with my tires. my baler pickup is 6' wide. I recently had a flat repaired and the tire guy said I could just move my rims out 4" per side using the same axle/wheel hub setup. This would only get me to 64" inside the rubber.
I would sure like to have a full 72" or touch more, so long as I don't rub the baler on turns (still have to measure the exact extreme outside allowance)
I've been reading about the jackbolt issues.... went to AGCO parts online, and was greeted with a base cost of $131 + $14.41 and we get $146 PER BOLT ( I would need 4..... $584 for a set?!?!?!?! YIKES!
so, I'm wondering, does anyone have the specs on total length, length of NON-threaded stud and Diameter of said stud?
If I'm going to attempt this, and I doubt these have been moved since dealer sold the new unit, I'd like to do so in the best practices manner.
I'd use 4 bolts, and have cleaned/greased up the threads before hand, and liberally sprayed the axle/bushing with lots of penetrating oil.
I don't mind spending a bit of money on this tractor, but WOW.... almost $600?
I do have available a couple local machine shops who could take down a proper threaded bolt for me.
or are there other easier options?
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AC7060Pd 1975
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Ky.Allis
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Posted: 11 Oct 2024 at 4:28pm |
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It would help if we knew what model tractor.
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im4racin
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Posted: 11 Oct 2024 at 11:17pm |
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There are used bolts out there. The newer stuff uses special thread pitch and that tap is expensive too
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DanWi
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Posted: 12 Oct 2024 at 8:38am |
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Bottom of his post says 7060.
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Alvin M
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Posted: 12 Oct 2024 at 9:11am |
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AGCO Part # is 70265185 85.59 each
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steve(ill)
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Posted: 12 Oct 2024 at 9:26am |
discussion........ size at bottom
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Like them all, but love the "B"s.
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steve(ill)
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Posted: 12 Oct 2024 at 9:31am |
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Like them all, but love the "B"s.
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nanuk
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Posted: 13 Oct 2024 at 4:19pm |
Thanks for the info folks
with the current exchange rate, the retail is quite pricey to bring over the border
I was wondering about getting a machine shop to take down some Gr8 7/8-12 but need to know the specs on the reduced stud size, and required thread length.
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AC7060Pd 1975
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nanuk
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Posted: 13 Oct 2024 at 4:39pm |
I just checked and from what I can tell, CaseIH is about 50% more than AC
Sheesh...
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nanuk
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Posted: 13 Oct 2024 at 4:41pm |
I see the the other thread, Lynn Marshall had some sets.... anyone know if they are still available?
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AC7060Pd 1975
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steve(ill)
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Posted: 13 Oct 2024 at 4:42pm |
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most 7/8 bolts are going to be 9 or 14 threads per inch.. The "12" thread is a Machine Standard for "large bolts" ... but are sometimes hard to get..... You should check if they are available in Canada first... the ones on e-bay might be the Cheapest route.
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Like them all, but love the "B"s.
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im4racin
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Posted: 13 Oct 2024 at 6:23pm |
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He might. That’s where I got mine. Just be sure you clean out the threaded holes before putting bolts in. That will make scrap bolts very fast!
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Lynn Marshall
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Posted: 13 Oct 2024 at 9:55pm |
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Sorry, I sold all of mine.
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IBWD MIke
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Posted: 14 Oct 2024 at 5:39am |
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Easiest route is probably just to buy those ones on E-bay Steve posted. They can be made but that aint going to be cheap either. Kind of a bitter pill to swallow for a one time thing. If you could find a set to borrow?
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only AC orange
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Posted: 14 Oct 2024 at 8:18am |
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How about buying 3 grade "8" bolts, turning down threaded end to proper length, and making do with them? I needed 3 for my D-19 and did the above - worked GREAT!
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IBWD MIke
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Posted: 14 Oct 2024 at 8:28am |
 only AC orange wrote:
How about buying 3 grade "8" bolts, turning down threaded end to proper length, and making do with them? I needed 3 for my D-19 and did the above - worked GREAT! |
That would likely work just fine if you can find 7/8-12 grade 8 bolts to start with. 14 is the standard fine thread. Now I'm going to have to do some research to see if they are out there.
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nanuk
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Posted: 14 Oct 2024 at 8:41am |
That's exactly what I was thinking
some hobby shop with a lathe could probably do it. in the listing, they are grade 8
But no one seems to know the overall length, or the length of the turned down portion
I'm going to guess it is quite important to overall strength
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Dale Hardtke
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Posted: 14 Oct 2024 at 9:07am |
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After learning about the need for the Allis Chalmers Wheel casting jack bolts I thought I would make available some of these for forum Allis Chalmers mechanics. These would be available to individuals to use with a good forum history. Two requirements: Pay the shipping costs and a promise to return them. Dale Hardtke Watertown Wi. 262 719 3552
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Gary Burnett
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Posted: 14 Oct 2024 at 10:00pm |
IBWD MIke wrote:
only AC orange wrote:
How about buying 3 grade "8" bolts, turning down threaded end to proper length, and making do with them? I needed 3 for my D-19 and did the above - worked GREAT! |
That would likely work just fine if you can find 7/8-12 grade 8 bolts to start with. 14 is the standard fine thread. Now I'm going to have to do some research to see if they are out there.
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McMaster Carr would be the 1st place I'd look
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IBWD MIke
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Posted: 15 Oct 2024 at 8:37am |
Dale Hardtke wrote:
After learning about the need for the Allis Chalmers Wheel casting jack bolts I thought I would make available some of these for forum Allis Chalmers mechanics. These would be available to individuals to use with a good forum history. Two requirements: Pay the shipping costs and a promise to return them. Dale Hardtke Watertown Wi. 262 719 3552 |
Dale, that is a very generous offer! Will have to keep this in mind though I doubt I will ever need a set.
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IBWD MIke
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Posted: 15 Oct 2024 at 8:46am |
Gary Burnett wrote:
IBWD MIke wrote:
only AC orange wrote:
How about buying 3 grade "8" bolts, turning down threaded end to proper length, and making do with them? I needed 3 for my D-19 and did the above - worked GREAT! |
That would likely work just fine if you can find 7/8-12 grade 8 bolts to start with. 14 is the standard fine thread. Now I'm going to have to do some research to see if they are out there.
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McMaster Carr would be the 1st place I'd look
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That was my thought too Gary, though I did a general Google search first. M/C didn't come up in the results, just looked at the first couple pages. Google, completely worthless, again! I did not find one single 7/8-12 bolt in my limited searching. Lots of 7/8-9 by 12" long.
I'm staying with the E-bay price seems high but really isn't. The amount of time it would take to make a set, provided one has the necessary machines, and figuring out the proper material, and doing a good job of heat treating them. One might be able to make them out of some sort of pre-hard material. That would eliminate the heat treating but makes the machining harder.... I would have to dig the book out to see what type of steel to start with, you sure wouldn't want to just use cold rolled steel!
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Allis dave
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Posted: 15 Oct 2024 at 9:12am |
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Did you check Fastenal?
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nanuk
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Posted: 15 Oct 2024 at 10:53am |
Dale Hardtke wrote:
After learning about the need for the Allis Chalmers Wheel casting jack bolts I thought I would make available some of these for forum Allis Chalmers mechanics. These would be available to individuals to use with a good forum history. Two requirements: Pay the shipping costs and a promise to return them. Dale Hardtke Watertown Wi. 262 719 3552 |
^^^THIS^^^
this is why I really like these online forums.
not only for the knowledge/help, but offers like this!
Awesome!!!
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steve(ill)
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Posted: 15 Oct 2024 at 3:56pm |
12 threads per inch is an old "MACHINE STANDARD"... used on bolts from 1 inch up to 3 or 4 inches in diameter... Used to assemble big Steam turbines, big Generators, etc... Different diameters, but EVERYTHING was 12 threads per inch.. I guess it made it simple for the guys running the lathe to cut EVERYTHING the same pitch....
the 7/8 diameter 12 thread is something of an ODD BALL.. Nobody really used the smaller bolts in a 12 thread design..Leave it to ALLIS to make something you can not buy on the open market.... You MIGHT find a bolt somewhere... but i doubt it.
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Like them all, but love the "B"s.
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Calvin Schmidt
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Posted: 20 Oct 2024 at 7:13pm |
Steve is correct. Jack bolts for the two piece wedges are 7/8" "12" tread. Not NC or NF ! My local Mennonite threading specialist made a bunch for me but Must are sold. He was also able to get me a 7/8" 12 tap to clean the threads in the wedge which is very important. I sold some to Alex at A-C Service in Wisconsin. He post on Facebook regularly and he may still have some for sale
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Nothing is impossible if it is properly financed
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nanuk
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Posted: 23 Oct 2024 at 9:32pm |
Calvin, do you have the specs on the bolts?
how long overall? how long the reduced section?
Thanks.
I will probably be buying some from a machinist, but I'd sure like to know just for S&Gs
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MrSnerdly
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Posted: 23 Oct 2024 at 10:13pm |
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Could you get by with 2 bolts instead of 4? Since there are 2 halves, it looks like it might be possible.
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8070nc
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Posted: 24 Oct 2024 at 3:20am |
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Wont work. You have to move the casting off the wedges. You cant take out one wedge at a time. Get 4 bolts
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1984 80780
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nanuk
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Posted: 24 Oct 2024 at 9:12am |
I have come to believe 2 "Might" work if the wedges have been removed recently and cleaned up
BUT in my case, I doubt they have moved since delivered from dealer... so 4 would for sure be required
otherwise I would risk breaking the ears off the wedges
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Calvin Schmidt
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Posted: 24 Oct 2024 at 11:25am |
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Since you are a Canadian, I can lend you my bolts if you only need to use them one time. See my email on my profile and we can go from there. Also much easier to send pictures if you want to have some made. Nothing against my American friends but customs is a PITA.
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Nothing is impossible if it is properly financed
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