This is the best kit available for adding power windows to your custom truck! Constructed of 1018 cold-roll steel with brass oil-lite thrust bearings at pivot points for long lasting performance. Chrome switches and necessary wiring harness included. Each kit is model specific and use new Siemens motors. This is a true bolt-in kit and uses stock channels. LIFETIME WARRANTY! Note: 1967-72 power kit will work with both standard side window glass and one piece window conversions.