Reply To: Howard 350 Rotor Drive

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Dealt with a few years ago and from what I can remember the problem was caused by wear on the dogs causing them to ” cam out” under load and the only answer is new components. What I also remember is that when offering the gearbox back onto the chain case there’s a little shim/thrust washer on one of the shafts that needs to be firmly stuck on the shaft with heavy grease to ensure that it stays in place. Once the gearbox is back on there is no way of checking !