I just want to say thanks for the help on this project. You all got me through the unknowns (to me) and the Cat resource sticky was a big help.Weller tractor had the wheel cylinders. I just got it back on the ground and all is well. Now I am afraid to do much with it as it looks like most every thing is obsolete and I can't use up all of my machinist favors on one project! Thanks Again, JEFF