When I built a toyota last winter we did the lift with high-lift jacks. While I was under it it almost fell over, and while my buddy was under it started to fall and I held it for a good hour before we finished installing the lift. It was scary as hell, but it worked.
Five speed 35" Claws, locked, some extra steel
Front and rear Trailready bumpers, roof rack, IRO Rear long arms, and HD adjustable track bar for sale