I had the Westcott kit installed last Friday and then had the Falken Wildpeak 285s installed on my stock rims on Saturday plus alignment. No rubbing, looks great and actually rides better than before.
Measurements for center of hub to fender:
RF Before 21 - After 23
LF Before 21 - After 23.25
RR Before 22.5 - After 23.75
LR Before 22.5 - After 23.75
Before
After
Final result with 285/70 Wildpeaks