I have a 1985 Kubota L225 with a Freeman 1000 FEL and loaded tires. When I am in Low 1st or 2nd gear I have no issue, Low reverse sometimes when I let off the clutch the tractor does not move. The engine is running at 2000 or 2500 RPM, I can raise and lower the bucket and 3pt arms but the transmission doesn’t seem to ”drive”. I put it in first and it moves. I have never driven it in High gear, I have recently purchased this tractor within the last 6 months. Transmission fluid is full and I do not see any fluid spraying, there is a small leak around the gear shift that I am going to fix soon. This is my first tractor and I’m not afraid to turn a wrench. I’ve already replaced the FEL lift cylinders and some hoses. Drained and refilled/replaced all fluids/filters first thing.