complete rear axle 10.25 drum to drum 4:10 gears posi-trac with upgraded super duty 3 pinion posi case and bearings. all bearings replaced 5000 miles ago no noise or leaks has the late model super duty alunimum diff cover also this is from my own personal truck. new axle seals and bearings also. complete with pinion and emergency brake cables. $275.00 firm. close to Dallas Texas pickup only