Thank you, I will look into the bushings, all the attachments listed on my signature is what I will be using, the ones that can be upgraded are already upgraded to cat 2 pins but there are a couple that there is no pin and the part that would act as the pin is part of the actual frame (those are the ones I really have to figure out upgrading that's why I asked this question) it's good to know that I can't upgrade to cat 3 pins (at least not without drilling bigger holes). I will be very careful with the attachments I still plan on going the same speed that I'm going now with the lighter/smaller ones. The dealer didn't even realize the tractor was cat 3 until I pointed it out that the holes are bigger. He's confused cause the tractor that this one replaced (when they switched the number system to reference horsepower instead of the old system) was cat 2 so he assumed this one was cat 2 as well.
If your attachments are Cat 2 pins now, why don't you get Cat 2 balls for the lower link arms on your tractor?
I don't know about yours but my Case New Holland has the balls held in by clips and the balls come out easily by removing the
clips and turning the balls a certain way. The tractor came with 2 different Cat size ball sets.