On my 1991 4Runner v6, on the passengers side frame rail is a valve body.

This vavle body takes the high and low pressure steering hoses from the PS pump, does something with it and then there are 2 lines that go from thise valve body to the PS gear box.

What is this thing?

 

I'm going to guess that it has something to do with the rear ABS.

 

it's a flux capacitor





lol

ummm, pictures maybe?

maybe a cooler of some sorts? but I know my 90 PU's just hooks in right above the gearbox

 

+1 on the ABS modulator. Uses power steering pressure to modulate the rear brakes.

 

well see I don't have ABS, so I wouldn't know anything about that, lol

props to you guys

 

I don't have ABS either....

 

Well, I replaced my leaky steering box with a non-leaky variant.

When I did so, I noticed that the bracket that affixes the ABS modulator hoopajoo had broken, and said hoopajoo was being held in place by the hardlines.

Now, after fixing ONE PS leak, I have another one... From the ABS modulator. I think it's the copper crush washers needing to be replaced.