MST FXX-D Aluminum Ball Differential Set

super high quality Ball diff!!!reliable vs the old gear diff in my MRX GT. you do need to shim it but it came with two .004 shims and 2 .012 shims . my specific car used one .012 and both .004 shims. I suspect that the previous review was due to leaving out the shims. you also use the shims to set the gear lash on the bevel gear. and was able to get perfect side to side fit and perfect gear mesh! Don't be afraid to get this it fits perfect when shimmed properly. just start with all of them and take one off at a time. then do the gear mesh by moving them from one side to the other. When i get another FXX I will be getting this fantastic diff for it... its totally worth the money.

Does not fit my mst fxx 2.0s to short and wobbles around everything was even brought to a professional to install said it doesn’t work waste of money