Ok, this machine was never greased before I got it, and it became apparent when I took off the bucket to use the forks. I had to pound out the pins, and now they won't go back in. There are so frozen solid. They have been sitting in pb blaster for the past week, and I still can't move it with a long pipe. Any suggestions? My next hope was to heat the outer metal, but after that, I am at a lose. How much are new bobtach units?