Features that were once options are now standard on the GT-3600 curb-and-gutter machine. The new Hook-and-Go mold mount system has no pins or latches, and there are no attachments to it. All new GT-3600 molds will be built for the new system and existing molds can be retrofitted in the field. The G21 digital operating system and "smart" cylinders for easy steering setup are now standard. Plus, travel speed has nearly doubled, from 66 to 125 fpm.