Dad says you are welcome.
The rear pump is only there so that you can "pop start" the engine(over 20 mph - I think) He agrees with Roy Rodgers, that the linkage to the manual valve could be installed wrong. He said that the band is for low gear, and the clutches are for high gear. If you did bung up the seal on the clutch pack, low should still work OK. Was there any metal in the pan when you dropped it today? If so, your pump might be in backwards. The tabs on the gear should be toward the rear(flush with the pump housing, not flush with the front of the tranny) He said there is also a valve in the pump itself. During the install, you should tighten the bellhousing bolts before you even start the ones on the converter. When the bellhousing bolts are tight, you should be able to spin the converter freely. There should be 1/8 to 1/4 inch clearance between the converter and the flywheel. Dad says he's got one rebuilt(in St. Louis) right now, but the cost of shipping it to Kansas would probably kill you though. He says that he wants to rebuild a powerglide blindfolded some day. I have no doubt that he could - I've seen him pull one out of a car in just 20 minutes before.
I hope that you find the problem without having to pull it. Good luck.
