Description Product Reviews Flagg B1401-75 Peterbilt Spring Pin 201560, 327445, B140175, M5270, SP1401 B1401-75 SUSPENSION MAKE: LENGTH:6.3125 LARGE DIAMETER:1.25 SMALL DIAMETER: LOCK SLOT:5.0 SPRING PIN TYPE:3 THREAD SIZE: THREAD LENGTH: COMMENTS:SPRING PIN