To begin, I've searched to the end of the internet and back, but here's my issue:
I spent 8 hrs at the dealership yesterday for a drivetrain vibration at initial acceleration to ~15 mph. They knocked out a TSB for drivetrain vibes and troubleshot the vibe that was still there (which is a result of the lift anyway). I convinced the mechanic to shim the carrier bearing about 3/8" with washers until my Old Man Emu FK29 drop kit arrives.
The TSB is done, axle shims are present and oriented correctly, and the CB is currently dropped ~3/8". The vibe/shudder is still there. Am I missing something?
'13 Tacoma TRD Off-Road DCSB