GAMBER JOHNSON's 7160-0198 semi tractor truck base. Compatible with all bucket standard and air ride seats. No drilling required. Attaches to seat studs. - DuraStar 4300/7300 (2002+) - Freightliner (2005+) - International (2005+) - Kenworth (2005+) - Mack (2005+) - Peterbilt (2005+) - Sterling (2005-2010) - Volvo (2005+) - Western Star (2005+)