I recently went muddin and cleaned my truck from top to bottom
issue now is when I accelerate it's shaky has NO power and doesnt wana go above 2500 rpm.. and even then it's still not gettin up n goin like it shuld
I think either I got water in the oil and it needs changed, or its a rear end issue
I new to kno which cuz money is tight before I start goin and replacing everything
any help is greatly appreciated and if any questions please ask thanks,

truck is an 06 s-crew 3"lift 33s programmer cold air intake wit 157k