1969 Dart Street/Strip (Re)Build
Notice the shock tower hole does not align with the hole in the HDK corner fitting. Because of this mismatch, you cannot get the bushing in without loosening the upper bolt. Loosen the upper bolt, push the bushing through the corner fitting and the shock tower support, then tighten the upper bolt.
With the bushing in place and upper bolt tightened, drill a 1/2" hole through the bushing and inner fender.
I tried both starting the hole with the 1/2" bit, drilled all the way through with a smaller bit and then stepped it up, and I drilled the other side with the 1/2" in one shot. Would probably just do the latter next time.
After drilling the hole, I installed the bolt through the stack-up and tightened. Here's where I wasn't too pleased. The bolt sucked my fender in and cracked the paint. A longer bushing would have prevented this. It's definitely no worse than the damage the valve cover breather did when it fell off and locked up my steering and really damaged the paint. But hey, it's no trailer queen show car. Paint's not anywhere near perfect anyway.