Got poly bushed one on mine,very good well made mount
Deffo makes a difference,car feels a lot tighter on the back end with it fitted,you can tell how shit the standard diff mount is if you jack up the rear end of the car and watch how much the diff/beam drops down as you lift the car up
Doesn't move with the poly mount fitted
Don't seem to get that horrible shuddering/vibration when wheelspinning now either,just smokes the tyres
Available from Mike at R&B Motorsport or Graham Goode