Just a suggestion. At your pivot point and index pin locations, if you drill them oversized and weld in a pipe bushing sized to the pins, you will get less wear and egging of the holes in the tubing. It won't fully make up for the smallish size of the tubing in those locations, but it will help a lot. Of course, if you've already done that I have just insulted you. /forums/images/graemlins/blush.gif Actually, I'm impressed with your progress thus far. Congratulations!!