#4105: Sharp Slope body, Apex roof walk, Champion hand brake, ASF A-3 Ride Control trucks, 9' Youngstown low tack door
#4110: Arc Slope body, Apex roof walk, Miner hand brake, ASF A-3 Ride Control trucks, 15' Youngstown double door
#4120: Gradual Slope body, no roof walk, Hydrocushion underframe, Modern hand brake, 9' PS low tack door, Barber S-2 roller bearing trucks
#4121: Gradual Slope body, Apex roof walk, Hydrocushion underframe, Modern hand brake, Barber S-2 roller bearing trucks, 9' Youngstown low tack door