hi i need a new rear diff for my x reg 2000 a3 qts ive been told that not all rear diffs are the same and that i need to with the same gearing as my gearbox? does anyone know if this part number will fit my car 02D525010AE. my car has a euk dwx 5 speed gearbox, thanks guys. p.s the rear diff is from an x reg 2000 golf v6 4 motion, which i was told will fit.