On all my mechanic work I go to the library the have reference books for everything on every make and model you just can't borrow so I copy what I need.....
Toyota 4runner 1999 has right hand threads. I used a flush gear puller (washered out between the puller halfves to allow alignment of two drill bits into holes in crankshaft pulley and also allows enough room for 19mm socket to be used on crankshaft pulley bolt, I then used a deep socket over one of the puller bolts (nut end) with a couple of extentions wedged against the truck frame ) then with a half inch drive breaker bar and a four foot cheater pipe was able to break the torque on the nut. However the bolt on my gear puller will have to be replaced (bent), but I didn't have to purchase or manufactured any special holding tool.
This requires a power steering pulley puller. This puller is designed to remove and install a power steering pulley without damage to the pulley and or pump. Attempting to do this without the puller will result in damaging the pulley or the pump or both.
Pull the belts, remove the center retaining bolt then use a harmonic balancer puller to remove the pulley. Make sure you use a disk that will protect the threads of the cranshaft when you tighten the puller.
Go to www.zzperformance.com and you will be able to rent a pulley puller do not use a regular pulley puller they. It is about 30 bucks to rent. It will take about an hour to do
an electric tool
To use the OEM 27031 pulley puller, first, ensure the area is clear and safe. Position the puller over the pulley, aligning its arms with the pulley grooves. Tighten the center screw to engage the puller on the pulley, then turn the screw clockwise to apply pressure and gradually pull the pulley off its shaft. Always check the manufacturer's guidelines for specific instructions and safety precautions.
That requires a special PULLER. Need a power steering pulley Puller.
You may need a pulley (aka gear) puller to pull it off of the crank. The puller comes usually with bolts or claws you can ancor onto the pulley...
To remove that pulley with out damaging the pump or the pulley you need a power steering pulley puller. This tool will also install the pulley. Your local auto parts store can rent or sell you that puller.
the crank pulley bolt has standard threads.
pulley puller
The puller will not put it back on. It's made to remove it only. To reinstall the pulley requires a bolt about 3 inches long, a nut, and flat washer that fits the bolt. There are threads inside the hole on the end of the pump shaft where you insert this bolt. First place the pulley onto the shaft and hold it in place, then install the bolt into the pump shaft. Then hold the bolt head with one wrench, while you tighten the nut and washer against the pulley with another wrench, and it will push the pulley onto the shaft.