2005 SE 4x4 Crew Cab, 80,000 miles
Pro Comp 6" Lift
Sway-A-Way Coilovers on the Front
Bilstein 5125 Shocks on the Rear
Total Chaos (-3/4") Shackles
PRG Traction Bars
PRG Driveshaft Spacer
the Pro Comp 3" lift block on rear
original U-Joints and CV Joints
1 degree pinion angle shims on rear axle
Issue... had been running the truck with 35x12.50's for the past 2 years. In November I decided to put the original wheels/tires back on for the winter-- the Goodyear Wrangler SR-A's.
Since doing so, I've noticed a much more sever drivetrain/driveline vibration issue. It can best be described as such:
Once you are rolling along, pressing the gas will result in sort of a whine/humm sound along with vibrating. As soon as you let off the gas and are coasting, both the whine/humm sound and the vibration stop. This tells me that it is occurring when the system is under a load.
Any thoughts or ideas fellas? There was a slight vibration/humm with the 35" tires, but it has increased significantly since changing to the other wheels/tires. My thought is that the larger tires (more rubber) sort of dampened the vibration, disguising the issue better.
I think once the weather breaks, I'm gonna swap out all four U-Joints.