I am at TransWest in Grand Junction, Colorado for repairs on my hydraulic system. I was told the drop in filters are Fleetguard HF 6505. Those are screw on canister filters and not drop in. Does anyone know what filters go in the hydraulic reservoir? It is unbelievable that the owners manual refers to (3) drop in filters, but gives no specifications for such. Any help would be appreciated as I am ready to have the shop tear into my rig. Thank you.