According to my Hyster chart a Hyster D6E (DD) for example, fits 37A, 44A, 74A and 99J D6's and 81H, 82H, 93J, 94J D5's plus the 977 53A.
A hyster w6f------c41 fits on a d5b. I have a d6b. As I understand be came a d5b when the d6c came out. My question is did winch bolt pattern stay the same when the d6 bcecame a d5 so I can use the winch on My d6b. Thanks Steve