finding shocks

I'm having trouble finding shocks. I got the part number off the old shocks (I just need rears), and they are a 27.35" ext and 16" coll length. Fabtech PN FTS7181. These match the lift on the truck, but I'd like to replace them with something better than house brand. The problem is that everything is either a loop on both ends, or doesn't specify ext/coll lengths.

Can anyone find a page listing ext/col's for the billys? I found one for ranchos (not what I want, besides they didn't have anything that would fit).

 

Well, turns out I was searching the wrong way. Got what I needed for info.

Next thing is either go with something else that has a stud on one end, or convert to a mount so I can use a hoop with double sheer.