MISilverado

Update on my vibration issue. Dealership decided to order a new propeller shaft (driveshaft). We will see how that works. I spoke to the service lady and she explained that warranty parts are held for 30 days then scrapped. I asked her to let me know when 30 days from the replacement was up and I wanted to take the shaft to a balance shop to have it checked out. She did not have a problem with that. Now if I can find out the residual imbalance for the shaft, I do not have a reference print to go off of. If anyone knows a tolerance, datum(s) that are used in production it would help. If not, I will just try to gather imbalance and total indicated runout.

Just for information purposes, where is everyone's truck produced? is there any correlation to a plant? Mine was made in Mexico, is it also happening at the Indiana plant?

First of all i apologize if the answer is in here but I did find the smoking gun yet in reading about 10 pages of posts out of 103. Here are my vibration symptoms. vibrates under medium to hard acceleration, 1st or 2nd gear, from 15mph to 30mph. Feels like my car back in college when the harmonic balancer went, but it dissappears untill it hits 40-60mph. At 40-60 mph it will be a subtle vibration almost a resonance in the cab and gas pedal unless you hit the right harmonic or put it in auto 4x4 to bring out some harmonic notes. When you decelerate from 62 to 40 at the rate of just letting off the gas, it gets really annoying. My drive is mostly 55mph roads. So to say the least, my last 2300 miles have been begging the question, "why did i sell my '02 that ran perfect even at 208K miles just to spend and extra $43K to listen to a vibration 1 hour to work and 1 hour back". These problems are on top of the fact that the salesman and I drove it in to be serviced before it ever left the lot. (dead pixels in the touch screen). So far I am displeased with the only new truck I have ever purchased. I have an appointment next week to get the radio replaced and have the vibration looked at. First 3 weeks of ownership have been less than exciting. First of all i apologize if the answer is in here but I did find the smoking gun yet in reading about 10 pages of posts out of 103. Here are my vibration symptoms. vibrates under medium to hard acceleration, 1st or 2nd gear, from 15mph to 30mph. Feels like my car back in college when the harmonic balancer went, but it dissappears untill it hits 40-60mph. At 40-60 mph it will be a subtle vibration almost a resonance in the cab and gas pedal unless you hit the right harmonic or put it in auto 4x4 to bring out some harmonic notes. When you decelerate from 62 to 40 at the rate of just letting off the gas, it gets really annoying. My drive is mostly 55mph roads. So to say the least, my last 2300 miles have been begging the question, "why did i sell my '02 that ran perfect even at 208K miles just to spend and extra $43K to listen to a vibration 1 hour to work and 1 hour back". These problems are on top of the fact that the salesman and I drove it in to be serviced before it ever left the lot. (dead pixels in the touch screen). So far I am displeased with the only new truck I have ever purchased. I have an appointment next week to get the radio replaced and have the vibration looked at. First 3 weeks of ownership have been less than exciting.