My D110 is only 5 years old with 180 hours on it and it's leaking oil out of one axle. Deere service says the whole transaxle must be replaced and there is no way to service, or fill it. A little research and I found a seal replacement kit for $50. A little more research and I find many people with sealed hydrostatic trannys are having issues after 5 years or so. The mower still runs and cuts fine, but I don't want to destroy the tranny if it can be fixed. Any insight, suggestions, or recommendations will be extremely helpful. Thanks!