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1967806

9 bolt dual hub variations

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My non cab 1466 had some aftermarket dual hubs on it when I bought it. Shortly after that I was able to get a pair of 18.4x38 duals with 9 bolt IH hubs bought at a local farm sale. One hub has studs with nuts and the other hub is threaded and has bolts in it. Also, the U clamp nuts on the hub with the bolts take a 1 and 5/8 socket than the other takes a 1 and 11/16. :D I dont mind the different size U bolt nuts becasue once they are on I wont mess with them again. However the bolts and studs that hold the duals on also have different size heads on each side too. I hate having to take off parts and haveing to have 3 or 4 different sizes of tools. I would like to start over with new bolts or studs and make everything the same on both hubs. I cant make up my mind whether to go with studs and nuts or bolts on both. I seem to like the bolts better as the dual is easier to line up. Either way I go one hub or the other is going to have to have some machine work. If I put studs in them, the one that had bolts, the holes will need reamed out a little. If I put bolts in them, the one that had studs will have thread inserts installed to get the bolts to fit. I was just wondering if anyone has been down this road before?

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Dad's 1256 had studs sticking out of the hubs and there were three clamps holding the hubs to the axles, I am thinking those were DMI duals but could be wrong. We never cared much for the studs, it was real easy to rake the threads, ruining them, putting the dual hubs on. Used to see lots of different hubs in my tire man days. Seems like the true IH hubs had bolts that went in threaded holes and they only had two clamps per axle but they were bigger ones.

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Our 1486 has IH duals with 9 bolt hubs. They are the bolt through the wheel type, can't tell you how many u-bolts right now. Studs seem like a fix someone did when they stripped the threads in the hubs, I can see where they would be easy to damage.

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The M&W 9 Bolts Hubs on the 400 are the same, one side studded the other bolted. The 756 has studded and the 2+2 has Bolts on the front and Stripped out bolts holes on back, have to use nuts on the back side. The studs can be easy to damage but are easier to put on IMO!

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Wow, we have a huge variety of dual hubs on the tractors here at home. Lets see if I can recall what we all have. M&W is the majority, but there's variations!

1066: Petersen brand 9 bolt hubs. 3 U-bolts ber hub, hub uses bolts to hold the dual on.

1256: M&W 9 bolt hubs. 2 U-bolts per hub, hub uses bolts to hold the dual on (laying in the shed now)

M&W 9 bolt hubs. 2 U-bolts per hub, hub uses studs to hold on Unverferth spacers, bolts hold the dual to the spacers. (for planting)

1206: M&W 9 bolt hubs. 3 U-bolts per hub, hub uses studs to hold the dual on.

826: M&W 9 bolt hubs. 2 U-bolts per hub, hub uses bolts to hold the dual on (show only, usually had the ones on w/ spacers for planting)

706: M&W 9 bolt hubs. 2 U-bolts per hub, hub uses studs to hold the dual on (show only)

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My 1066 has a 9 bolt pattern on the duals. I got a big casting on the axle with 2 clamps where the duals go on. The casting has threads in it to put duals on.

Now I got a question, My 1206 has radio tires on it, can you run bais duals on it???

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When I was a kid Dad had a 1466 that he put studs in the hub for the duals because the threads had stripped out. I believe the studs were pressed in from the back. The studs he used were from a Dodge 1ton truck. We always left the nuts threaded on to the studs when the duals were off to protect the threads.

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