Driveline Vibration

[Louie0913]

Hey Guys and gals I have a 2004 Silverado 5.3 recently supercharged 2wd that has a 3 in lift in the front I replaced the rear leafs with 7 leaf rear springs I added active suspension and air bags on the rear as I tow a travel trailer The rear sits about 3 inches higher than the front naturally. My problem is on that on takeoff i get a vibration until I get into 2nd gear its mild without the trailer its really rough when im towing the trailer. All the modifications have been done essentially with factory parts except the front which are aftermarket.. this vibration started about a month ago and the mods are well over a year old ... any help on this would be appreciated sorry for getting long winded but i wanted all the info out there ...

[Adrian17]

Does your truck have the two piece drive shaft? I know that with lifts the two piece drive shafts have to be brought down some with the drop kits they sell. Or again if it had the two piece your carrier bearing might be worn out. Just a thought and I will be lifting my truck soon and noticed that they need to be dropped down. Just a thought sorry if it does not help.

[davester]

just the common stuff u-joints, carrier bearing, transmission output bushing