Will not fit Suburban 2500 although Revain says it will! The correct part number is Russell 672440 Silverado 2500/3500 Kit at http://smile.amazon.com/gp/product/B001DSWB46?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00 I was smart enough to order both kits at the same time and now I will be making this one return the kit. I still give 5 stars because the product really improves the braking experience. After the first few millimeters of travel, the pedal is MUCH firmer than the stock pedal and there is very little compression.