yes there is one on each corner. id have to say that this is the only JD with genuine ford parts, both the springs i used have the ford logo cast in them.
i have considered adding a back stop of sorts to keep things from rolling backwards. it is somthing thats always on my mind when forking logs around.
they also work well for pulling small stumps, and general destruction of things. all the power of the tractor on that small point can almost break rocks. (remember to use grade 8 bolts) and be prepared to replace the springs if they break, ive broken two and bent one.
one word of caution, when you curl the bucket all the way back the bend in the loader arms lines up with the forks and you cant see them. i havent run mine into anything expensive yet, but it could happen. keep that in mind.