Contacted them once a month for the first six months or so, let it go to a couple of months after that. Nice guys, just couldn't get the parts from their suppliers.
I'd still like to get the truck a little higher off the ground, but I've gotten used to seeing it low, so maybe I should put wheels and tires on the back matching the fronts and lower the rear a little. Come to think of it, all the trucks like mine I've seen with Mustang II front ends are pretty low in the front.
