vibrations and clunk when i let off trottle and hit trottle

[spiner5000]

Originally Posted by blazinzuk

Could be a bad pinion bearing. Could also be an out of balance driveshaft

possible its a 2 piece drive shaft and it acts like the splines are worn out when u twist it... it has no clunk when u put it in gear when u just started it and everything is cold its about 42 out side and im pretty sure 203 transfer cases take sae 30 motor oil because the book say it dose and i checked it and it looks like tranny fluid so maybe oil to thin causing clunk but vibrations idk yet