Grumpy,thanks and whats a bight-joe,put on a brand new belt of the victa spec m-45.when you push the mower back and forward by hand the rear pulley/diff ass rocks up and down about 2mm.i am thinking that is enough to make the belt jump,i am not sure if from new it was ment to rock or just from wear.i can drill a hole in the deck to hold a 4mm bolt right next to the belt at the start of the rear pulley and weld a chain link cut in half to act as a fixed guide just before the belt enters the rear pulley if you get my drift,good imagination.in the photos you can see the rear pulley/diff...ken
