O5 rangers don't use ttb. And there is a big differance between the his ranger front hub and the toyota. Newer rangers have live hubs, so you can't take them apart or even grease them (unless you go thru the abs sensor) I would still recomend doing the work yourself, since it is very easy.
2003 Ranger FX4 level II. 3" BL, 33x12.50 GT Radial Mud Claws, Custom front and rear bumpers with winch hookups, custom flatbed, with hi-lift, and full size spare mount, 12,000 lb winch mounted under bed, Electric fan, and of course a flowmaster.