So I have my 06 taco at the dealer right now. I was hearing chirping/squeaking noise while accelerating on gas from under truck. Did some research and guess it could be u joints or carrier bearings.
Just got off phone with mechanic at dealership and he said its not the u-joints or the carrier bearing but the drive shaft itself.
He said there is a shaft within the shaft making the noise and wants $1025 to replace it!!!!