1989 Isuzu Trooper repack bearings

Where can I find a description of how to get to and repack the front wheel bearings on my 1989 Trooper? If you know, would you PLEASE email me at seaman@sistemaguanacaste. Com

PS: I found a mechanic (here in Costa Rica) who replaced inner & out bearing (along with seal), packed the other side, and replaced break pads for $100---parts included. What threw me was that the spindle nut looks like a rotary phone dial and has locking screws that aren't visible unless you clean really well.