Hey guys. Hope everyone is having a great Friday.
I have a 2017 Silverado with a 4" Rancho lift and 35" tires. I'm kind of at a breaking point with this noise. It's a vibration/rattling that's pretty deep sounding. I'm not saying this in jest, but it sounds like a mechanical fart if there was one. It's almost always at 40-45 and 65-75 MPH. It is at its worst going uphill with light acceleration. It will feel like the truck is stumbling and you know it's coming, then the noise will start in little spurts with space in between, or the noise will be continuous if you stay at the exact MPH with foot stable on the pedal. As soon as you break or let off it will cease. The longest continuation of the noise will be 5-10 seconds I'd say. I feel it through the gas pedal and sometimes the steering wheel. It's not like the whole trucks shaking. The noise happens at the exact same places at the exact same times every day going to/from work and other places. Since the issue started I've had spark plugs replaced, transmission flushed, maintenance with break pads and rotors. Nothing has fixed it.
I have some videos attached that should help. You'll hear intermittent vibrating/rattling/shaking. Also, one one you will hear a wo wo wo wo noise. These were taken in the cab where I stuck the phone as close to my feet as I could. It sounds more prominent and deeper when you are in the cab. I would appreciate any suggestions/insight if possible.
Thanks
