I installed mine today. Didn't have any issues hitting or clearing anything. It isn't overly hard to do, but it is a little challenging holding it up to the frame to start the bolts. What I did was get a slightly smaller bolt thru the top forward mounting hole and into the frame to use as a pivot to take most of the weight. Then swing it up in place with one hand and start the two back bolts with my other hand. Leave those two loose to get a little wiggle room to line up the top forward bolt. Did it all with the truck on the floor. Then just snug them all up and zip tie the wires up out of the way. I couldn't loosen the top forward bolt with a 3/8 extra long ratchet wrench, no how, no way. Ended up using a 1/2 breaker bar to loosen the top bolt, and snug them up. I had all three weld nuts on the frame. I started all three bolts thru the nuts before I started to put the step on for real. I live in the sand and salt midwest country and had the truck undercoated when I bought it.
Hope this tip helps those of you who are going it alone. Many thanks to the OP, pics helped a great deal.
The step is well worth the time, effort and money.