Thanks Guys for the response. Regional Kubota rep. is coming out to check the M7040 out. He says, (over the phone), that they have had the issue before, and it did not effect the overall operation of the tractor. (?) He said if I go under the hood and feel the hydro hoses, I probably will feel some "pulsing" when the "clunking noises" are apparant. The noise didn't seem as distinct when I had the hydr. shuttle in neutral and the gear shift in neutral the other day. Talked to a big service dealer in central PA and they said they never heard of such of a problem with m7040. Still in the dark a bit, but Great site and great info, still digging for answers; Thanks; Bob, (very concerned) in Upstate PA.