The helix on the gears in a wavetrac isn't steep(?) enough so the bias ratio isn't very high.......and they aren't very durable.
A torsen T2r for late model mustang 8.8s has an advertised bias ration of 4:1 if I remember right. The True Trac is 3:1 in the same application....again, going off memory. The bias ratio for the same diff in different manufacturers housings can vary.
I wish Strange would do the S Trac in a 31 spline version. That thing is bullet proof. Call them and ask for it. I asked at PRI but I am not sure anyone was listening.
Tim McGilton was trying a new diff but I can't remember what it was.
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Donny
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