Can anyone I.D. this : B/W 4 speed ?   On passanger side of trans-- Case #D7D8-7006 or 08-A-A, tailshaft: #D7D8-7A_ _ (these 2 digits blurred) o-AA also has a piece on bottem of tailshaft like a dorsel fin with 3 evenly spaced holes. There's a tag also on case: UG-BP   GH26  D7DR-AA-1837. Anybody decipher this and tell me what it is and possible gear ratio--- Is this the B/W 4-speed offered in "57"? It seems to have a close 1st to 2nd then a wider 3rd that you can drive around town without going to 4th until about 45 or 50 mph. Thanks for any help on this!  Skip