Rear Vibration

ok so i just reinstalled my 4" blocks.... with new u-bolts.... i also put some brand new gas shocks on the rear..... when i start out in first it vibrates a lil (between 5-15 mph) then when i go a little faster it stops vibrating and doesn't do it again untill i go to take off again.... what is causing this?

sounds like your carrier bearing is starting to go

or a u-joint maybe

bump... anyone else had this problem?

Sounds like u-joint going bad to me.

my bett would be u-juint or carrier bearing.






-justin