differential lock pedal seems to move as it should; it seems to engage only on occasion. I noticed having difficulty moving on muddy/icey dirt and noticed only front wheels were spinning/pulling. The rears were not spinning and engaging diff. lock did nothing. Then, randomly, rear wheels would get power and spin, differential lock would engage and both rear wheels would spin, then with lock engaged, right rear would stop spinning and only left would spin, all the time fronts worked as they should. I have tried 2 wheel, in all ranges; seems to be no issue but did not put tit under load, used 1/2/3 ranges in 2 and 4 wheel. I parked it if there is an issue. Did not want to damage anymore if I have an issue or something just was not locking up as it should from cold temps. ( about 19 degrees today, last time I used it before this issue it was 50 degrees.
I appreciate all the responses, this is a great site.