Join Date: Feb 2002
Location: Reynoldsburg, Ohio
The Eaton Tru Trac uses spherical gears and is a Torque Multiplying/ Biasing Diff much like the Torsen T2's operation.
They will not grind in a turn and I like them so much that, that is all I use in my vehicles if I have any choice.
Plus the effect of more managed power to the ground, you can feel the difference in the seat of your pants in certain driving situations. IMHO
Cons of the units are they Don't Like shock loads well. They have no way of shunting excessive energy and can fail if you rev your motor high and Dump the Clutch hard or drop the Tranny into drive from Neutral.
If taking one to the drags you need to preload the diff and they work great.
The Stock Auburn Units and the Eaton Brute #400 diffs use slip clutch plates and springs to drive the axles so yes they will bind and pop in a turn, some more than others depending on friction on plate, modifier in the oil and type of oil. Just a side effect of the design.
Mike Longfellow ISSCA #883, HOSS 271, NAISSO, BBHP #42, #112 & #125
96 DGGM SS - BBHP#42 Stop, Turn, Show & Go Mods
96 BBB 9C1 - BBHP#112 Stop, Turn, Show & Go Mods
96 DCM Buick NoWoody Wagon, BBHP#125, Mods - You Bet
02 Pewter Z71 Suburban, The true Whale, Mods - You Bet
"If you want to kick the tiger in his ass, you'd better have a plan for dealing with his teeth. " T Clancy