have you tried changing the fluid? i had a similar problem, i changed my fluid from gear oil to synth auto trans fluid for the summer, worked out great. and i also drained and refilled my clutch fluid. hope this helps, you may have gottin water in it at some point and corrupted the fluid.I noticed that my trans is harder to shift lately, the clutch seems fine? The most notable is downshifting although sometimes but not all the time 1st to 2nd? Is my clutch wore more than I think it is or is it something in my trans?