Anyone running 37s on stock suspension whatsoever is definitely a mall crawler. They definitely won't rub when you go over speed bumps even with flares on.. lol
Been running 3" Icon lift for the last 3 yrs, on 35s and 37s with just caster plates and never had any problems before and now even with my 4" Slinky/Dobinson setup. But i am considering the 3" long version in hoping for more flex in the future....