nasty vibration

[shortyv6]

i have a nasty vibration of my truck when i let off the throttle. doesnt matter which gear or what speed as long as its over 20mph. i have no clue what this might be. any one have any ideas? :smt100

[KnuckleHead]

U-Joints maybe?

When you let off the gas, it may take the load off the bearings and cause enough slack to vibrate.

[Donkey]

Carrier bearing?

[fourwd1]

Summer air still in the tires ?

[Ted]

It's the U-joint. Replace your U-joint.

[moe.taco]

yeah, u-joint sounds like your culprit. Especially after just doin your lift.

Pete

[shortyv6]

never thought of u joints after the lift. oops. guess ill get that done before the jan run...

thanks
alan

[Donkey]

Could be your pinion angle could be wrong.

[kajo]

Could also be loose driveshaft bolts, That was my issue once

[shortyv6]

angle is good. but i havent checked anything else yet as you know bout the shitty weather lately