Re threads that *almost* fit - usually you can use some medium carbo (400) with a little WD-40 (remember WD-40 makes it go, duct tape makes it stop..)& lap the threads together carefully until they do fit. Andy Saulietis / DTG Alt-Az-Fp Drive Systems 12617 Harriet Ln Santa Fe, TX 77510 USA 409-925-8854 Voice/Fax