I just bought a 2004 Fleetwood Sequoia. The crank up system appears not to have or to need safety brackets (those metal brackets that fit around two of the shafts the cable runs through on opposite co...
I had two Coleman Fleetwoods - a 2000 and a 2004, neither have them. I forget why, but you definitely do not need them. I think it might be because all 4 are independent, and also the door (when put in place) acts as a bit more support. I have been on various PUP boards since 2000 and never heard of anyone needing one.
BTW, my 2nd PUP was a Sequoia. Enjoy all that space!