Scott,
I have done two. First one was on my own truck, taking my time and being sure of every step on the printout, about an hour. Second one I did for a friend, he read the instructions and watched as I worked, 20 minutes.
Big thing to be careful of is to be sure not to cross thread the bolts that hold the Weyburn Stabilizer to the truck frame, make sure you use a long punch or similar to line everything up and can run the bolts in several turns by hand before using a wrench on the heads.
Have fun.
Ian.
Oo. :{ Oo.