310SJ - BACKHOE, LOADER 17 Frame Chassis Or Supporting Structure Parts group 17 Frame Chassis Or Supporting Structure 1740 Frame Installation . Main Frame Main Frame Guards 1746 Frame Bottom Guards . Stabilizer Cylinder Guard Kit 1747 Bumpers, Vehicle . Bumper 1749 Chassis Weights . Front Counterweight Kit 200 kg (450 lb.) Front Counterweight Kit 310 kg (700 lb.) Front Counterweight Kit 455 kg (1000 lb.) Front Counterweight Kit 545 kg (1250 lb.) Front Counterweight Kit 650 kg (1450 lb.) Select group 17 Frame Chassis Or Supporting Structure John Deere: 1740 Frame Installation 1746 Frame Bottom Guards 1747 Bumpers, Vehicle 1749 Chassis Weights