[ajplacke]

drained and replaced fluid and filter. released relief valves, they move freely. when i start the engine and push hydro lever to reverse it gives out that classic hydro hum but won't move. when i push the lever to forward theres no hum and definitely no forward. when i pulled out the fill plug the fluid is frothy. when i took the diff plate off to drain fluid one of the bolts is stripped out and only snug to maybe 2-5 ft lbs. can that cause an air leak and give me the no go? just wondering if there is anything else i'm missing? getting frustrated