This isn't a hot-rodding question, but you guys seem to know your way around transmissions more then just about any other forum I've been on. I'm reassembling a 4L60E from a 2002 Silverado 1500 4WD 5.3L, and I've got a spring, checkball capsule, and tiny checkball on my work bench that I think came from the transmission. I say "I think" because it's entirely possible someone else left the stuff there, there are 2 other guys working in the same shop on stuff.
Parts are pictured on a 3"x5" index card. The spring measures about 2.3" long, .370" diameter, .069" wire diameter. It has some small amounts of light blue paint on it. The check ball capsule measures .447" OD, .385" ID, and 1.109" overall diameter. I have both the ALTRA rebuild manual and GM 4L60E manual, and I can't find these parts in either book, but these books also don't show some slight differences between my valve body and older ones. The line pressure blow-off spring was never removed from the pump. I don't believe anything came from the valve body, I moved it to another work bench to tear it apart, and I seem to have all the parts from that, looking at diagrams online.
Any help you can provide would be greatly appreciated, I'm pulling my hair out here.