Drawbar Models 2000, 2100, 2110, 2310, 2600, 2610, 2810, 2910, 3000, 3100, 3310, 3430, 3600, 3610, 3900, 3910, 3930, 4000, 4110, 4130, 4600, 4610, 4630, 4830, 5030, 5600, 5700, 6600, 6700, 7600, 7700