Any one installed the AMP Research PowerStep XL - PART # AMP-77255-01A on a ZR2 1500? This set looks like a Rocker Guard when closed. I have Rocker Guards from the dealer, but really need some steps for the girls to be able to get in and out of this truck. Wondering how they look compared to the Rocker Guards and if the closed clearance is still the same. According to one of the on line sellers "They hang about 2-3 inches when close and when extended they drop about 12-13 inches". That seams like a LONG drop for a 1500 even with the factory 2" lift.