Tacoma suspension is different to Hilux suspension.
Here is an application guide for all of ARB's (Old Man Emu is made by ARB) stuff for the Toyota Hilux. Look at the part numbers on this, that will help you get the right stuff. I don't know how successful you will be in finding US distributors that sell Hilux parts, but good luck anyway.
Also, ARB has stores in South Africa so perhaps it might be easier and cheaper just to get the stuff there.