Bought a new gear diff and it doesn't fit. Borrowed and older one it fits. Contacted AE and they say it should fit without a gear case swap. From what I can tell then gear diff is too wide now by about .012

Side note, a tlr22 has 4 degree rear toe and 3 anti squat stick vs 3 toe in and 2 anti squat on b4.2 has anyone tried to mimic the tlr car?