drive train trouble

So my rear end is growling when I’m on the highway and let off the gas. Shop I talked with said they would just put in a whole new rear end instead of trying to diagnose the part that needs to be replaced. I have a 15 GT automatic with 3.15 gears though. Should I just buy this from LMR and get...

Hi all, I've been having some issues somewhere in the drive train. The techs at the local Ford dealership will not pursue further investigation until the shifter is back to OEM standard parts. 5 years ago I replaced the bushing with a BlowFish shifter bracket, along the way the old shifter...