FatBill said:
Save yourself some time. Go to this site. It will tell you all about the inner workings of the shock.
Turning the can does nothing. If the can turns the nut - you are lucky.
Go to "preload shocks."
http://fatbillscustoms.com/
Well I guess I'm lucky. Any time I adjust the preload with the lock nut
loose by turning the can with a strap wrench it works. Yes I count the
threads.
I initiallly tried this because I was at near max preload and coudn't get
both wrenches on to hold the can and loosen the locknut. I held the can
with the strap wrench and loosend the the lock nut with the 1 1/16" wrench.
Maybe your right, I'm just lucky.