I have a Bobcat T190. the lower pivot pins for the bobtach mount into the boom on a taper. One of the pins broke off in there before i bought it and wore the taper real bad. I found a company called Construction Tool Parts that makes a repair kit. They say to drill out the boom to 1 3/4" and then they have a bushing to install? Has anyone ever used this kit? I'm trying to figure out how to drill such a big hole! A machinist buddy of mine says that he can't even drill this big with a magnetic base drill. Any thoughts would be appreciated.