After about 100 passes on 315 Nitto Drag radials dumping the clutch at 4000 the rear end is acting up. I'm pretty sure I blew the posi. My knowledge isn't very good when it comes to rear ends so sorry if any of my questions are stupid. I'm going to redo the whole thing. I plan on buying the 31 spline moser axles. Do these axles use C clips? I think I'm going to go with a powertrax differential...what do you guys think of this unit?...also, does it come with a limited slip? So is there anything else I am going to have to buy besides the axles, differential, and c clip eliminators??? Thanks a lot for the help guys!