Hey guys, picked up a running 55 Bel Air the other day with the 235, and powerglide. The car is completely original. The problem I'm having is that the car does not want to go into reverse, although it drives pretty good. When the car is running, and I shift into reverse the idle does drop like its engaging but the car does not move. I checked the fluid and found it was 2.5 quarts low. I added the fluid but there was no change. I have not checked linkage yet but, if the idle is dropping when it goes into reverse that means the linkage probably is not the issue right? Does this point to adjusting the reverse band? I see thats a common problem with these.