I am sure many owners of these gear driven tractors put in what ever they had. My 106 had some heavy gear oil in it before I changed it with Hytran. I put 30 wt in my 122. They both operate good and shift nice.
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122-snow blade and 42 deck, wheel weights, fluid filled tires,chains
106-42"deck
1250-44 and 50" decks
147-44"deck
2155-42"snowblower 38"deck, chains,suitcase weights
Exmark Quest-zero turn 42"deck 23hp Kawasaki engine
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