Rearend help, Axles and Differential, which is best?

I personally would go with superior axles (they have a 5yr warrenty and come with new axle bearings) and the ford 31 spline T-lok. I wish I had the ford T-lok over my eaton... the eaton's case is known to crack with high rpm launches. The auburns have a horrid rep for burning out the cone clutches if both wheels are not spinning on the same type of surface (ie one is in the water box the other isn't). You really can't go wrong with the ford T-lok. My dad absolutely murders his car on the launch and he runs the 31 spline t-lok... its been in there for over 4yrs without a hint of problems, and the nice thing is it can be rebuilt with parts from the local ford garage.

Stay away from strange 31 spline S/S axles.

I got mine from Summitt for ~$240 or so if memory serves me right.

I am running Moser 31 spline axles with a Ford T-lock. No problems so far. Of course it hasn't been to the track...yet.

I run Moser 31 spline axles, Eaton posi, and FRPP 3.73s. I love the combo.