Update: My middle arm was not in lowest setting but never mattered on my other tractors so i paid no attention to it.Also moved the lift arms to the 2nd set of holes.Seems to help.But when I take my back blade off I will shorten the lift arms,right now the stationary one shows about 2.5" of thread.My dealer does not even want to touch the turnbuckle.Anybody that has a 6800,how much thread is showing on your stationary lift arm ?