paxam

All
a series of weird events and now I have a vibration...
last fri got a bad o2 replaced it with a bosh ... drove the truck across the state put in a trd thermostsat then lost the clutch master cyl...with allot of pumping to engauge it I got it home..next day I get a clutch master cyl from toyota install and bleed .now I have a vibration at 3k to 3200 rpm also lower rmp but under load. pedal feels good and no slipping..it will burn second gear...I checked the crank bolt thinking it was lose and even the transfer case output shaft bolt...all tight..
I can make the vibe happen in the garage clutch in and out it does not matter. my next plan is to take off the accy belts and run it for a min.
after that I am planning on putting in a clutch assy...zoom mu
any ideas ?????????????????????????????