POWER UP! AutoLöc's flat-glass power window conversion kit allows you to convert your old flat glass windows into a completely new power system. No welding cutting or modification needed! This kits bolts on to all:1991 - 1996 Caprice Full Size 4 Door FrontAutoLöc's revolutionary Super Glide window design assures easy installation and guaranteed smooth operation. Each kit comes with high-torque worm-gear driven Bosch motors, reinforced guide tracks, and adjustable window bases, all of which assure quick, quiet, and dependable operation for the life of your vehicle. Each PWC11 kit can be upgraded to remote operation using any of AutoLöc's keyless entry units or window controllers (PWRE75). Each kit comes with detailed instructions and a Limited Lifetime Warranty.Featured on several TV shows including Monster Garage, and Pimp My Ride AutoLoc kits deliver where all others fails. Insist on the best, and insist on AutoLoc and you be glad you did.