I purchased a JD 8320 last spring. I have used it one season and enjoyed it a lot. I was notified that the tractor has a recall on it to replace the crank shaft. /forums/images/graemlins/frown.gif I have read advertisements about 20 series tractors that have rebuilt engines. Is this due to the crank shaft breaking? Is there anyone out there who knows about this or has had it happen? Did it do any additional damage to the engine? Changing the crankshaft is a big job even if it is covered under warranty. Thanks!