Please note: This item has a lead time of approximately 5-6 weeks from the date of purchase. The Sherpa Adjustable Track Mounting Foot is the do-anything foot for building or upgrading a rack. Use it on a DIY roof rack, to replace the feet on most existing systems, or with Sherpa topper racks and load bar systems. It is designed for 10-series extrusion and gives you real adjustment: 1" to 1-1/2" and 1-7/8" to 2-5/16" of height, plus ±17° of angle. Two shapes cover most setups: a flat version and a contoured version for curved roofs. It is great for installing extrusion crossbars on campers, canopies, toppers, and DIY roof racks. Note: each foot comes with the bolts to connect it to the track. Sherpa Roof Track Anchor Plates, or any track/capture nut that slides into your track, are not included; plan on at least two per mounting foot. Specifications Height adjustment 1"–1-1/2" and 1-7/8"–2-5/16" Angle adjustment ±17° Extrusion Designed for 10-series Versions Flat or contoured (curved roof) Included (1) adjustable track mount and crossbar mounting bolts SKU 365400 (Flat) / 366400 (Contoured) Roof Track Anchor Plates or track nuts sold separately (at least two per foot).