I've tried to search for a answer but can't find one, I got blended fiberglass arches on my 200sx and don't run stupidly low that it scrapes underneath. the problem I got is when going into my driveway or a big bump/dip at speed in my skyline that's same height the rear wheel normally hits the arch. i don't want to destroy the arches if wheel hits them Is there something I can do to stop this happening? longer bumpstops?
Change the wheel or the arch. Limiting suspension travel is a seriously shit option. If the springs are soft as shite then increase the stiffness, obviously that will make it ride bumps worse though and it comes to a point where it's just as brutal as banging bump stops all the time, so don't go full retard.