RedfireMustang06GT

I have had this problem on two different occasions as I've set up now 3:73 gears. They are very tricky to set up and the noise you're hearing are the clutches in the rear differential , basically too tight.... Anyway, re setup the rear end and also add some anti-friction modifier with the new clutches and it will go away..

RedFire

Drop Top 06

I had the same moaning sounds at low speed turns when i was out of the gas. Clutch Pack TSB. Took a less than a day to swap out at the dealer under warranty.. now the only noise I hear is the engine and mufflers!!!