LSVP is Load Sensing Proportioning Valve
It is in the back, not far from the fuel filter,
and there is a spring that attaches to the
rear Y link, sorry, I don't have a picture.
You could also follow the rear brake
lines, they go into it 
Wild
Done that a bunch of times. Nothing. Hell I put all new lines back their (to run my line lock) and STILL nothing! I know what I'm looking for, I have one on my Taco.
I think I Just need a pic to confirm that it's NOT THERE.
Also, I had a zuki friend tell me that the LSPV is a little metering block on the side of the master cylinder! Almost makes sense, all the lines coming from the MC go into a little aluminum block, then out to the brakes.....?
SOMEONE GO TAKE ME A PIC!!!!!!
