Condition: Used This is a Rockwell 23000lb rearend 3.91 ratio. The rearend came out of a 1999 freightliner single axle it uses fine spline axles it is in good condition. If you have any questions feel free to call Bill @ 606-269-4906. Shipping available will need zip code for a shipping quote. we have many more truck parts avaliable Feel free to ask about our other items or visit our other auct...