Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
An inexpensive Sears, strap wrench is all you need to rotate the shocks. Use the strap wrench on the bottom of the shocks around the holes on the bottom cover. Turn counter-clockwise to reduce preload, turn clockwise to increase preload. Should be five settings total (least preload = 1, most preload = 5).
I use a strap wrench too, it works better than the harley tool and it wont scratch the chrome. I usually make the shocks one click firmer when riding 2 up. It only takes a minute to turn them.