On my L2202. It has a 4 speed pto, with an H pattern. Since I only use the #1 speed, I cut me a piece of scrap pine board, and made it a kinda-sorta wedge shape, drop it in the left hand side of the H, under the shifter, when PTO is in gear , and viola, No more pop outs, when I am bush hogging. No parts bill, and no trip to get parts, LOL! Definitely non osha approved, I'm sure!