I bought a hydramatic driveline for my 54 3100 only to find I needed to gather some missing brackets, linkage etc. Cleared that one only to find that previous owner had installed behind new engine with no pilot bushing. Dampner spring in torrus cover broke and went thru torrus halves damaging fins and wearing rear torrus casing kinda thin. Located replacment parts only to find the throttle pressure lever would spin complete 360 degrees. Pulled valve body and found that knurled part of shaft broke loose. Studied assy. manual and found correct mounting position and had welded up. Feeling pretty good and that all major hurdles had been cleared. Went tonight to auto parts store to get recommended Type A automatic tranny fluid as per service manual. 2 stores and all I get is blank stares and "there is no such thing" "What's it go in"? What type of trans fluid are the other Hydra owners running? Thanks G.H.