I have a 06 deisel 4x4 with the 6 speed transmission with 52,000 miles and have just installed the 3rd flywheel. I also had to replace the rear main seal. There is a large vibration noise when you accelerate or decelerate, when hauling any equipment the noise gets louder. Checked the crank with a dial indicator upon replacing this flywheel and found motor to be fine. any ideas!!