0 Spoke WheelFive or six heavy steel projections originating from the center hub; resembles a heavy wagon wheel. READ MORE
0 Sliding Tandem (Slider)A mechanism that allows a tandem axle suspension to be moved back and forth under the trailer, used to maximize weight distribution. READ MORE
0 Single Point SuspensionTwo large springs on either side of the trailer, resting on a trunnion tube in the center and connected to the axle on both ends. READ MORE
0 Single HopperThe point of discharge on the bottom of a bulk tank or grain trailer. Located at the bottom of the body. READ MORE
0 Side Loading Rear Door (cattle)A side door located at the back corner of a livestock trailer, usually accompanied by a fold down ramp. READ MORE
0 Side KitA covering with the sole purpose of weatherproofing a flatbed. These consist of support posts, wood sideboards, tarp bows, and a tarp. READ MORE
0 Side Door Middle (cattle)Usually a roll-up door located in the middle section of a trailer. READ MORE
0 Sheep/Goat TrailerA livestock trailer with three or four floors to accommodate small animals. READ MORE
0 Set Forward Axle (SFA)Occurs when the front axle is purposely located farther towards the front of the vehicle. READ MORE