Is anyone else having as much trouble with these red new holland heads as I am? 2 gearboxes, 3 gathering chain drive sprockets and last night the adjuster bolt for the gathering chain ( of course it's "special") 10" long with 3 inches of threads and the dealer had NONE. AND THIS IS ONLY A 6 ROW HEAD!I'm really getting pi#@ed off. I had a 963 for 14 years with vurtually no problems and this is a piece of sh#*. I only run 700-800 acres per year so I prefer a 6 row head on long rows so I can get to the ends w/o being full but if the 8 rows are holding up better I may switch. ALSO the gear box gets so hot you could fry and egg on it and I have swithched to synthetic oil to try to cool it down but is still plenty hot. are others out there having similar problens?