I am selling a rebuilt, 35 spline Wavetrac differential. I use the word 'rebuilt' lightly; the unit had about 8 miles on the street and 15 passes on the strip before it decided to give up the ghost. The entire diff was rebuilt under warranty with the exception of the wave and the pin side preload hubs. I'm done with differentials and went with a spool so this has now become a very expensive paper weight. This unit new is $995, I'm asking $850 shipped/picked up. Price is negotiable but I won't give low ballers the time of day. The limited lifetime warranty is transferrable: http://wavetrac.net/warranty/