I have an 1996 863 that I recently picked up. I am getting a leak from the hydraulic control valve. The boot on the bucket control lift spool end is torn and that is where it is leaking from. What I need to know is if there is a tear in the boot and it is leaking there, is there an internal issue with the control valve? in other words, can i just replace the boot or do I need to pull it apart and replace o-rings, etc. I do have the control unit off of the BC so if I need to I will, but if I do not have to I am not big on taking apart something like that and risking screwing something else up. Does anyone have a good diagram of the unit? Does anyone have a parts list for these parts and/or a place to order them? I would definitely appreciate any detailed breakdown images and or instructions of the unti if you have them. Thanks, Dean