Originally posted by Crosley
Yes , the early aluminum power glides had rear pumps. If the rear pump sheared the drive pin it would not up shift as I recall.
I gotta sign this too?
Yep. Happened on my Wife's '56 Bel Air hard top. All of a sudden wouldn't shift our of first. Upon inspection we found a split rar pump ring gear. Easy to replace and back on the road!