for Vibration please tell if you have Auto 4X4 or Auto 4X2.

Just want to break the prior poll down on this subject. Looks like the 48RE Autos are the problem, but which ones?

4X4 or 4X2? 2500 or 3500? LWB or SWB? Think if we answer these questions you might be able to find the answer. Seen alot of post talking about some shared componets such as T/C possibly being outta balance, this is a shared componet among 4x4 and 4x2. If that is the case then all of the models with the 48RE would be affected. Now if its a Transfer Case problem then only 4X4 will be affected. Could be those extra long driveshafts on the LWB.

Hopefully we can find out what the problem is.