Luis,
Compared to the heated debate about the exact measurements of 245/75R16 tires, you made a statement related to more serious matter. So, live with the questions.
This is the only mention of TracTech on Ashcroft's website:
The ATB supplied by Quaife and Tractech operate on the same principle but the Quaife has double the number of helical gears fitted"
.
It doesn't even mean Quaife diff is stronger than a TT (it may be, but one cannot say without knowing the details).
How does that translate into TrueTrac requiring twice more wheelspin to engage?
Given the TT's almost twice the amount of torque bias of the Quaife, it is even more intriguing. Provide quote or explain yourself, please.
Now, about lifetime warranty. It is one of the most blatant BS in commerce. Let's see... you buy a Quaife from Ashcroft for about $1k, it breaks ten years down the road, you take it out and wait for two months for the replacement to arrive in the mail?
Never mind, though. I've put about 110kmi on my rear TT, and about 35 - on the front. All - with stock LR axles. Something tells me that the only reason to replace a broken TT would be lack of oil in the housing (for an extended period of time).
Quaife diffs, in the U.S., are for poor suckers with rice rockets, for which Eaton doesn't care to make a locker or an LSD.
Where's Mark Olivares when you need him...