I just recently got my first Taurus, model 66-B4, from my buddy, when I got it it was completely locked up and after cleaning it spins freely, too freely. The cylinder will not stay in position and can spin when the cylinder is closed. I believe it is missing a spring that would go into a hole covered by a screw near the front of the trigger. Does anyone know where I can get this spring, it seems like a big hassle to send it back to Taurus to get this part. Any help is appreciated.