Whining noise in the rear end. 2006 Jeep Liberty.
I took my 2006 Jeep Liberty Aamco Transmission in July 2014 thinking that there was a problem with my transmission. They informed me it wasn't the transmission, that it was the rear differential. At the cost of $1,500 they replaced it with a used part. At the end of August 2014 I started hearing a whining noise coming from the rear end and I only hear it when I accelerate the car. I have a 12 month/12,000 mile warranty on the repairs they made in July, however I afraid they're going to say it something else wrong. Can anyone help me with what this noise could possibly be.