68 powerglide - When I pulled the radiator I noticed that very little if any fliud came out of the lines from the tranny. I was thinking there should be more and the radiator itself should hold some. When moving the radiator around to paint it didn't leak fluid. This transmision does slip once in awhile when warm and the fluid is dark but doesn't smell burnt. I was going to pull the lines and blow them out but couldn't get them off. Any Ideas?