Got the Rhino Ramps for $38.49 at Home Depot and got the recommended stabilizer from FCP EURO for $50.93 delivered. Had the 16mm socket and wrench. The ramps slipped on my smooth garage floor but worked well on my driveway, especially since they were on a slight downward slope. And I was able to turn the wheel slightly to the left without moving the ramps. I did not add any fresh blue loctite to the upward facing bolt (think there was enough residual there). The original part has equal resistance to the new part, so I likely did not need the replacement (at least not yet). An easy task to be sure. I will keep the old part and use it as a contingency replacement should the new one ever fail.
Thanks for all the advice.