Torsen Diff(erences)?
 

I'm looking at one of the Torsen differentials available from FRPP... they show the T-2(low bias ratio of 2.0), Boss 302 T-2(low bias ratio of 2.7), and FR500S T-2R(high bias ratio of 4.0). I'm curious to find out which one would be a good choice for our 5.0 GT's.

I wouldn't go more than the one the Boss comes with. The race high bias one has virtually no slip so going around corners is worse even than a detroit locker, will make the car push and tires squeal, almost as bad as a spool but not fully locked.

I'd go with the Boss 302 version. I'd hate to have cornering issues with the T-2R

Got it, thanks. Boss 302 version it is!