TH350 valve body question

I'm running a TH350 in my el camino. I'm converting it from column shift to a floor shift with a Hurst Quarter Stick. I need to choose between the shifter for the reverse valve body th350 and the forward valve body th350. How can I tell the difference between the two so i can tell which valve body mine has?

 

as long as it still shifts automatically then you will have a standard valve body reverse valve bodies only shift manually and are generally used with trans brakes