will switching brands eliminate vibration

I have that pesky vibration since I put a 3" pro comp spacer lift w/ AAL on. What if I throw out this lift all together and try... say...the 3" toytec ultimate lift, will I still have that 'f---in' vibration? Or is this a problem I will have no matter what lift I use? What if I went to a 6"?

By the way I removed the front drive shaft today and no change in the vibration. Its gotta be the front diff or cv's. Truck is an 07 with just around 38k miles. I can't believe these would be shot already. Warrenty has passed also

 

I would bet its your drive line. Try some 3* shims in the rear, then go from there.
Most vibes after lifting come from the drive shaft/carrier bearing. So I would try the shims first before tossing the lift...

 

Changing lifts won't change the vibration. The vibration is most likely coming from the rear driveshaft.

As Evertaco23 has already said, put some axle shims in and that should help.

 

It might work....It might not to swap the lift components....but starting with the shims is a good place. You can try a diff drop too. Those are cheaper than buying a while new lift...(60 bucks or so compared to a 700ish)

 

What they all said. Try shims first. No matter what lift you run up front your going to change the angle of the drive shaft which is probably whats causing your vibrations. Thats assuming that you feel the vibrations in the seat. If you feel the vibrations in the steering wheel, you need to get your alignment checked out.