Source for something with 3 1/4 ID splines?

JDemaris

Well-known Member
I'm trying to repair an International Harvester backhoe, model 3210 hoe on a 3414 wheel/tractor/loader. Older model with the rack and pinion swing setup. They are known for having a failed splined yoke on top. I've searched around and can't find one use. Not available new - and if it was - Komatsu would probably want $1000 for it.

I'm looking for anything that has female (internal) splines - 32 splines by 3 1/4" OD. I was thinking that maybe some tractors might use that size in their rockshaft arms or something? I just need something with those splines; the electric welder will do the rest.

The original part - the yoke that is worn out is formerly IH - formerly Case-IH, formerly-Dresser -and now Komatsu part # 468389R11

Many old IH hoes use that same yoke.
 
That was a typo. My hoe is a 3120 or a 3121. There are many other models that use the same yoke but have longer booms - e.g. 3131, 3141, etc.

These hoes were used on IH tractors - 2424, 2444, 2504, 2544,606,3414,3444,3514,3616 wheel tractors, trucks, 500 crawlers, etc.
 
Tractor is no problem since is basically a British B-275 or B-414 painted yellow. Versions of it are still made new by Mahindra. The problem is the hoe and the oddball rack and pinion swing mechanism - and the fact that Komatsu (who owns IH industrial) doesn't offer any parts).
 
This would be the more expensive way, but you can pull the shaft and have 4 key ways cut into them with set screws into the mount. saw one done that way. check with Gene at Evergreen parts Vancouver WA 800-843-6885 he has found some parts I had given up on. good luck
 

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