John/Greg,
I just got done setting up my I-match quick hitch on my JD2210. The JD is very similar to the ones carried by TSC, and they all use a Cat III bushing size on the lower pins. I'm not sure why they do this, unless this all started with the larger utility tractors using Cat III equipment. Then I wouldn't think these hitches would be beefy enough to use them on that kind of heavy equipment.
Anyhow, I've found that even John Deere can't decide on what their internal standard should be. I purchased several attachments from the X-series Lawn & Garden line of tractors for use with my 2210 and Cat I 3pt. None of these worked directly with the JD I-match. These attachments were set up for JD's Alpha hitch, which is somewhat hard to explain. There are some pictures of this hitch on JD's web. The tractor side of the Alpha hitch is ~$150 and the attachment side is ~$100 per.
I had to extend several of the top pinholes and I've bought about 5 sets of lower bushing kits ($19 per set at TSC). These bushing sets are a heavy stepped sleeve that fits over the Cat I pin and has a Cat III outside diameter. You use a spring pin to hold it on the Cat I pin. The sleeve has a much larger diameter at its outer end, which I assume keeps the adapter from sliding out of the quick hitch during use. I have also used a Cat I to II and Cat II to III bushings, one inside the other, then just use a retaining clip on the end of the pin. A set of these bushings only run about $6. The top links also need bushed up to the Cat III top pin size.
Once you get your equipment set up, the hitch works great. I have the 450 tiller (top pin too low), weight box, 48" scraper box, 40-gallon sprayer (to pin too low), LX4 bush hog, and a custom-made trailer hitch. You can literally back up to the equipment, raise the 3pt, drop the retaining levers from the driver's seat, and away you go. No fiddling and messing with links and pins or resetting the stabilizers bars.
It is all worth it once you have got it set up.
John
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