[2ndGenToyotaFan]

Here we go.... This is an IFS locking hub off my 89 4Runner. 86-95 will be the same. Solid axle 79-85 and many Cruiser hubs are the exact same design, only different sizes, but you probably could not tell from the pictures other than the different spline count.

Notes: I have no idea what these parts are called. Yes, that's about what my hand writing looks like. I assembled them dry so it would be clear how it all goes together, you should grease everything. I used a pair of snapring pliers, a few sizes of standard (flat) screwdrivers, and a small pair of needle nose pliers to do the rebuild. You will need 10 and 12mm sockets to remove the locking hub from the truck, and a small punch or screwdriver and a hammer are a help in removing the cone washers.

Pic 1. There are 17 parts (gasket not pictured) in the locking hub. Only the O ring and gasket are non-metal parts, and do not always need replacing. (I'm not replacing mine yet.)

Pic 2. Gear, washer, gear, and snap-ring. Second gear can be flipped over but I put mine back the same way (Look for wear marks that show even after much scrubbing)

Pic 3. Those 4 parts assembled