Jackshaft / Murray 92849MAPack Size:1Murray 92849, Murray 92849MALaser 97750, NHC 253-6195, Oregon 85-029, Ratio Parts 22-548Murray 38", 40" and 42" decks; 1996OD: 5/8 ", Length: 8 ", Thread: 9/16 "-18 UNF, 1 1/2" OD shoulder