This truss is designed to give you the torsional rigidity required to run a link setup well. We all see lots of tube style trusses in use but a tube dosen't address the twist introduced with torque input, tubes will make the axle stronger and give a place to mount your upper links but do little beyond that. Then there are the plate steel variations that also are great axle strengtheners and even better mounting points for links but again, do little about torsional twisting. Our truss designs incorporate a full torsion box for strength in every way others do but the box design also resists' the twist incurred with extreme torque input. Additional torsional rigidity should extend the life of your Birfields! Toyota was kind enough to make the housing a good weldable steel and not cast iron, so this is a half truss and it is made to weld to the side of the housing and to the axle tube on the other end leaving you 6.75" on either side of the centerline for link placement. This is very simular to our Cruiser Front Truss, just slightly smaller for the smaller tubes and smaller Differential center.