83rampage
05-17-2016, 03:15 PM
I know this isn't the best forum for this, but there is lots of thinking outside the box on this board, so here goes.
My 2006 mega cab (http://www.amazon.com/gp/search?ie=UTF8&camp=1789&creative=9325&index=automotive&keywords=mega%2Bcab&linkCode=ur2) 4x4 auto (3500 SRW) has developed a strange vibration over the last year or so.
Basically it is a vibration that starts around 65 MPH and gets progressively worse as speed increases. Around 70 MPH it becomes a vibration the comes in 1 second "waves". It vibrates-stops-vibrates-stops at about 1 second intervals.
Truck is very low miles at 50,000 original miles. I am the original owner and this truck is almost 100% stock with 2 exceptions: 1 piece aluminum driveshaft and 285/70/17 Bridgestone tires. Never had a tuner on it at all and has never been off-road or abused in any way.
Vibration is speed related but it is worse if under power, as opposed to when coasting.
Things done to troubleshoot:
1. Changed tires. The originals were dry rotting so put on new Bridgestone Revo tires 1 size bigger than stock.
2. Changed out 2 piece rear driveshaft. When this vibration first started my first thought was u joints or center bearing-Great excuse to upgrade to a 1 piece aluminum driveshaft. Had one built by a local shop with new u joints.
3. Removed front driveshaft.
4. Rebuilt transfer case with a bearing and seal kit. Never replaced the chain because it was still in good shape. All internals looked in fine.
My next thought was maybe the engine/transfercase mounts are getting weak, but I don't want to just throw any more parts at it.
Any help here would be great.:eyebrows:
My 2006 mega cab (http://www.amazon.com/gp/search?ie=UTF8&camp=1789&creative=9325&index=automotive&keywords=mega%2Bcab&linkCode=ur2) 4x4 auto (3500 SRW) has developed a strange vibration over the last year or so.
Basically it is a vibration that starts around 65 MPH and gets progressively worse as speed increases. Around 70 MPH it becomes a vibration the comes in 1 second "waves". It vibrates-stops-vibrates-stops at about 1 second intervals.
Truck is very low miles at 50,000 original miles. I am the original owner and this truck is almost 100% stock with 2 exceptions: 1 piece aluminum driveshaft and 285/70/17 Bridgestone tires. Never had a tuner on it at all and has never been off-road or abused in any way.
Vibration is speed related but it is worse if under power, as opposed to when coasting.
Things done to troubleshoot:
1. Changed tires. The originals were dry rotting so put on new Bridgestone Revo tires 1 size bigger than stock.
2. Changed out 2 piece rear driveshaft. When this vibration first started my first thought was u joints or center bearing-Great excuse to upgrade to a 1 piece aluminum driveshaft. Had one built by a local shop with new u joints.
3. Removed front driveshaft.
4. Rebuilt transfer case with a bearing and seal kit. Never replaced the chain because it was still in good shape. All internals looked in fine.
My next thought was maybe the engine/transfercase mounts are getting weak, but I don't want to just throw any more parts at it.
Any help here would be great.:eyebrows: