Bad luck with vibrations

I have kept pretty quiet and just reading and reading. I deceided to go with a Procomp strut spacer lift because i didn't want to get to invasive wth cutting, welding and grinding etc...... The only snag is the vibration that has ruined all my joy of having a lift on my truck. I have tried various shimms on the carrier bearing and work with BeefedTaco to get ride of the vibration. BeefedTaco knows his shit and produces an awesome product. I have also removed the diff drop spacers and nothing. However, I feel the vibration in my truck stems from the front half of the drivetrain. Why else would it almost go away in 4wd? My next step is to give my truck to my best friend who a master Tech at a toyota dealer whos into rock climbing Toyotas and see what he can do. In the end I feel I will be removing the lift all together but I will have to see what my friend can do. If a solution is found, be certain it will be posted for all who wish to rid their truck of this vibration hell.

 

So far the only fix I have seen is a new front diff. Still have a warranty?

 

Welcome to the club.

http://www.tacomaworld.com/forum/suspension/124505-urgg-lifted-2-5-now-i-have-wicked-vibes.html

 

Is there a tsb on your driveshaft. All my vibs came from my driveshaft, mine was modified but it had a dent in the tail section that connects to the rear end.

 

if they come from the front try the this