Download A design change was made to the front door side window regulator assembly installed on vehicles built after and including VIN SZ148736. Since the 2nd design regulator installs differently, the inner door panel has also been revised. This article describes the installation procedure to install a new 2nd design regulator into a 1st design door. 1. Remove inner and outer door trim panels. 2. Lower door glass. Remove front side door window regulator nuts with tool SA9148B. Push glass up and rotate slightly. Remove door glass. 3. On vehicles equipped with a power front side door window regulator, disconnect electrical harness connector. 4. Remove front side door window regulator assembly cam bolts. Drill out rivets and remove front side door window regulator assembly. 5. Place inner panel cam (rear of new front side door window regulator assembly) into opening in inner door panel, before riveting front side door window regulator assembly into place. 6. Position front side door window regulator assembly backplate to inner door panel and install rivets.