I have just replaced my 95wrx gearbox and rear dif with uk 97 ones,at the same time i replaced flywheel with a 5.4 lightwight version along with an AP organic clutch.I am having two problems with this,first being the speedo seems to be miles out now and i am also getting a strange vibration in the front wheels in first and second gear when the power comes in,can any one help please,I had to use this gearbox because mine went bang, but i do like the longer gearing of the uk box..