Background:Types of Toyota E-Lockers:

Landcruiser Rear: 9.5", standard rotation (low-pinion), available in 93'-97' FZJ80 rear axles. Requires full-float axle as well as a specially machined shaft with longer splines for the engagement of the dog clutch mechanism.

Landcruiser Front: 8", reverse rotation (high-pinion), available in 93'-97' FZJ80 front axles.

Tacoma TRD Rear: 8", standard rotation, available in 97' & up Tacomas, 4Runners, and FJ Cruisers.

Links:General Toyota Differential Information & Links
http://home.4x4wire.com/erik/diffs/8" Low-Pinion E-Locker into a 00' 4Runner Rear Axle
http://www.sonoransteel.com/phong/retrofit_electric_locker.html#switch

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