I had/have that same problem with the deck raising and not being level. I was mowing with a 129 with hydraulic lift and hit a root. I went to lift the deck and didn't realize the deck lip was caught on the root and I broke a rockshaft pin. They are coiled roll pins, 5/16"x 1 1/2" IIRC. I had the same thing happen on a 149. It isn't that hard to replace the pins. I removed the deck and undercarriage then jacked the tractor up to about a 45* angle. I found half of the roll pin in the 149 just lying there loose in the hole and I could remove it with just my fingers. The rest popped out nicely with a drift pin. I just parked the 129 in the barn because I didn't have to have it...plenty of mowers around.
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