Welcome to the forums!

Did you carefully check the idler arm, control arm bushings, steering stabilizer, sway bar bushings, end links, and rear shocks?

 

Idler arm is new, steering stabilizer is new, sway bar bushings are new, along with end links and all 4 new shocks! This truck is a money pit....
PS Bam- your posts have helped me solve so many other problems, thanks!

 

How good are the front shafts? It should be possible to remove the left side and see if the issue disappears or not.

Glad the forums are able to help you out.

 

Left side is newish...plus I have milemarker manual hubs

 

The only thing left that I can think of off the top of my head would be the brake rotor/hub or the control arm bushings. Are the torsion arms cranked up?

 

Is it a 4WD truck?

 

Yes, as noted in the first posting.

 

When you got the motor rebuilt, did they install new motor mounts? Have you inspected the left motor mount to see if there is any evidence of damage?

 

I had similar experience with rear right. It vibrated at approx 45-55, but went away at 65+. After replacing tire & doing wheel balance it got better.
Since you swapped wheel-tire assemblies and there was no change; wheels are balanced as you claim, I wonder if you had that type of issue prior to replacement of multiple components of front steering & suspension?
I'd jack up the front L side and shake that wheel for starters. If nothing obvious, I think it's a good idea to go back & re-investigate L front side installation.
BTW, did you adjust torsion bars prior or after the front alignment has been done? If you did after, it's probably a good idea to do alignment again.

 

Thanks for the input everyone. Yesterday I took it back to the tire shop to have the rear tires balanced and swapped with the front. And it made a difference! Shake is still there but not as bad as before. Could 2 out of 4 of my wheels be bent? Would that cause the above symptoms? I'll also take out that driveshaft and see what that does. Hoping it's not the dreaded control arm bushings!

 

One would hope that guys in tire shop will catch if tire-wheel assembly is out of balance.
You right, driveshaft would have nothing to do with symptoms that you described.

 

Around here it doesn't surprise me that they didn't. Shops in my area are reallllly clueless sometimes. Anyway gonna scrounge up some money for Craigslist wheels next week and will post back with results ? What's the T100 lug pattern?

 

Good info here:

http://www.boltpatternfitment.com/toyota-bolt-patterns/



You guys don't have some decent "les schwab" or "tire factory" around?