1978 Mack RD685S, Truck Trailer, Spindles/Knuckles, Fits to: Mack RD685S, (Used) 1978 Mack RD685S, FRONT SPINDLE/KNUCKLE- Side: Driver Left, Make: Mack, Model: 3QHF414EP, Capacity: 12,000Lbs, Hub Bolts: 6, Brake Type: Drum, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON MD, 21921, Truck Year 1978, VIN RD685S3685, Axle Make Mack RD685S3685