When I am taking off in second gear right before the truck starts to move there is like a shutter thats feels like it is comming from the drive line and also there is a quick squeek, squeek, sound. It only does it when taking off flat or a hill doesn't matter. It feels like my rear end is rolling out of the leaf springs. What do you guys think?

 

flywheel problem maybe, the flywheel in the g56 is known to come apart

 

As you start moving or before any movement? Sounds like mine when rear driveshaft u-joints went. When taking off or braking the slight change in driveshaft angle can make dry u-joints squeek.

 

It only happens when I start to move. Like right when the rear end is loading up then I start to roll that is when I hear the noise ,and I feel a little shutter.


I don't think it's my flywheel beacause it's a new SBC unit.