79" Stainless Steel Trim Strips for AMP Research Power Steps (Pair) by AMP Research Looking for a great accept to your AMP Research Power Steps? This shiny new stainless steel trim strip set is the perfect solution. The trim strips mount onto your existing 79" AMP Research Power Steps (fits all models EXCEPT Hummer, Jeep, Tacoma, and 2011+ GM HD Diesels) The part number for this item is 75149-01A and it fits all 79" AMP Research Power Steps (except Hummer Jeep, Tacoma, and 2011+ GM Diesels) with the new style extrusion.