Need a little help installing your DW01036 GTY and DW01037 GTY Peterbilt windshields? This easy helper/time saver will pull back those pesky inside encapsulated corners and make it easier to rope or hook-in your Peterbilt windshields. Just clip on diagonal corners and tighten the cord. Leaves no mark on the encapsulation. After installed, release the cord and clamps and reuse for the next one. Takes up little space in your tool box. $20 plus $5 shipping.