| 75-178HD | 330 and 335; Front - with cast eye type springs | 4 | 35 3/8 | 32 | 4 | PD/7/1 | PD/660 7/660 2ND 1/1.250 | 6 7/8 | 12,750 | Two stage |
| 75-178HD | 357 and 379 with set back axle; Front - eye casting on front spring | 4 | 35 3/8 | 32 | 4 | PD/7/1 | PD/660 7/660 2ND 1/1.250 | 6 7/8 | 12,750 | Two stage |
| 75-170HD | 357, 377, 377 A/E, 378 and 379 with set forward axle; Front | 4 | 25 13/16 | 25 13/16 | 4 3/8 | PD/6/1 | PD/360 6/558 2ND 1/1.210 | 4 15/16 | 10,800 | Two stage |
| 75-202HD | 357, 377, 377 A/E, 378 and 379 with set forward axle; Front | 4 | 25 1/8 | 26 5/8 | 4 ½ | PD/6/1 | PD/323 6/558 2ND 1/1.210 | 4 9/16 | 10,800 | Two stage |
| 75-178HD | Front; 320 - Models with cast eye type springs | 4 | 35 3/8 | 32 | 4 | PD/7/1 | PD/660 7/660 2ND 1/1.250 | 6 7/8 | 12,750 | Two stage |