The old Deere (1968 H3) gave out today. Was pushing some snow this afternoon under load and just stopped. No loud bang or any noise so i don't think it is any hard parts. I checked that the fluid level & check valves. Did a quick search of Ebay and only saw post 30,000 Hydro's but no early ones. What is the common failure on these and are parts available. If it is just seals are the parts readily available. I got to get it back in the garage and dried off and get the cab and seat pan off to get a good look but first back to work. Thanks in advance for your thoughts.