So I am fabricating and installing an rolling electric gate. It uses a v shaped track bolted to the cement drive. And two V shaped wheels. BUT the V shaped track bolts, in the pre drilled holes, wont work because the wheels hit the damn things!! Have to drill new holes on all the track. AFTER drilling I drilled dozens of 3/8 holes in the cement for anchors, that came with the track. Now I have to drill new holes in the drive again.