LSD for Automatic (U340E)

[suprf1y]

Originally Posted by CrankyOldMan

As for the actual performance? No idea. A clutch type uses the friction disks to create a threshold for "opening" the diff, a helical uses the slip angle of the gears to do the same. This one is just pushing against the spider gears on the smaller end of their tapered teeth, so the contact patch is tiny. I can't find any definitive/conclusive evidence that they in fact improve traction, just marketing videos and people whose butt dyno swears that they make them faster.

Options for the Suzuki's I used to drive is limited so these are fairly popular, and though it's not the real thing, the guys who use them really like them.

Probably better than nothing IMO.

[06YarisRS]

Originally Posted by suprf1y

Options for the Suzuki's I used to drive is limited so these are fairly popular, and though it's not the real thing, the guys who use them really like them.

Probably better than nothing IMO.

Interesting. Thanks. I've been doing more reading. Although I'm just learning about differentials, the idea of direct metal-to-metal contact and high outward forces on the axle gears would worry me. I understand how important it is to have the axle gears shaved to have a uniform surface between the PG plates and the gear, but I've seen a few pics of extreme wear and damage. I've also read many, many positive reviews. Just not sure it's a gamble I'd be willing to take.