I have a b2150 with a LA350 loader. This is my first winter with the tractor and I noticed that when the temperature gets below freezing the valve freezes and prevents the bucket from lifting. If I let the tractor run at a high idle for 45 min or so it "thaws" out and starts working. Also there is no detent for the float option. This has been like this since I owned the tractor. I was considering taking the valve apart to dry it out but I am not sure of how big of can of worms I am opening. I figured since I was in there I would fix the float/detent issues also. The seal kit I found for the valve is about $110 and a detent kit is about another $310. This seems expensive, just wondering if I need both of these kits in order to fix it or if there is typical o-ring seals that can be purchased locally at a auto parts store? This will be my first venture into a hydraulic valve.