p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Arial} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Arial; min-height: 14.0px} Certainteed plastic pivot lock shoe used with coil balance spring and cover. Certainteed had 4 generations of this shoe, all are interchangeable. The new style has a metal cam and protruding tabs on both sides of pivot block. New style may have a larger hole than previous shoe with plastic cam. All Certainteed Window parts sold individually or as pairs Coil spring is attached with #8 x 3/8 Phillips pan head screw - Not included Please review other images - Click on image to enlarge. Priced and sold each. Removing & Installation of Pivot Lock shoe: The pivot lock shoe fits tight in the side jamb, a slight twist from back to front on one side will generally get the shoe out. Reverse the process when installing. If the Shoe slides hard in the channel, remove the 4 protruding tabs with toe nail clippers, then reinstall.