Eaton Posi vs. Detroit Tru Trac

[Slatco]

Alright fellas, rebuilding my 8.8 with new 3.73 gears, Moser 31 spline axles and a Trick Flow Diff Cover. Except I don't know which to go with for a diff, the Eaton Posi or the Detroit True Trac (and yes I know that Eaton owns both) The car will be 60% drag 40% street and I plan on running a NOS big shot with an Edlebrock performer intake in the future. Which diff is best suited for what I plan on doing? Also are these two diffs superior to the ford racing diff that was found on the 03 Cobra?

Any insight will be greatly appreciated.

 

[SpartaPerformance]

Eaton if you're really 60/40 drag/street because they can whine very loudly which can get annoying as a DD car.

 

[88blowngt]

Anything wrong with just a OEM traction lok as a replacement?

 

[SpartaPerformance]

For a street car OEM is just fine, if you're going to rebuild the unit Cobra clutch pack would be recommended