Add it yourself...
Installing Factory OEM Electric Lockers into an 80 Series Land Cruiserhttp://www.bajaoverland.com/elocker.php
Welded Carrier Sectionhttp://www.ih8mud.com/tech/woody/welded.html
80-series Center Diff Lock Modhttp://www.ih8mud.com/tech/80centerdifflock.php
FJ40 - EZ-Locker / Lock-Right install instructionhttp://www.ih8mud.com/tech/woody/ez-lock.html
Diff Breather Installhttp://www.toyotasurf.asn.au/techsite/diffbreathers.htm
ADD - Maintenance/ troubleshootinghttp://www.toyotasurf.asn.au/techsite/add.htm
Rebuilding and setting up a Land Cruiser differentialhttp://members.cox.net/cglabe1/Diff/diff.html
Install a Rear Differential Breather Extensionhttp://www.customtacos.com/tech/index.php?article=86
Changing Your Front, Rear, Tranny & Transfer Case Fluidshttp://www.4runners.org/writeups/difftsf/index.html
3rd Gen 4Runner E-locker Retrofithttp://www.4runners.org/writeups/elocker/
1993-1997 Toyota Corolla transmissions and axleshttp://www.corolland.com/corolla/1993-1997/transmissions.html
TRD Limited Slip Differential Instructionshttp://www.customtacos.com/tech/index.php?article=300
Tundra/Tacoma Rear Lockrighthttp://www.toy4x4.net/rear_locker/index.htm
Toyota Electric Lockerhttp://www.carterswebsite.com/4runner/mods/locker/
Hilux Front Axle rebuild and body lifthttp://www.hilux4x4.co.za/front-axle-rebuild-hilux/index.php
change the rear differential bush on a Toyota Celica GT4 ST165 ST185 and ST205http://www.gtfours.co.uk/how_to/diff_bush/diff_bush.htm
Diff breather modhttp://www.toyotanation.com/forum/61-2nd-generation-2005/171451-diff-breather-mod.html
4Runner leaking front diff sealhttp://jaw.iinet.net.au/cars/4runner/diffseal.html
E-locker retrofithttp://home.off-road.com/~kemanuel/elocker/elocker.html
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