Search for 3" lifts as in a SWB its pretty much the same stuff needed for a 3" lift to 6" etc etc. Just lengths and driveshaft maybe a problem.
I have a 3" to 3.5" and I have done the following
Extended brake lines front and rear
Diff breathers as the old ones will rip first trip offroad and handy time to lengthen.
Extended Bumper stops
Longer lower control arms
Longer sway bar pins
Proportional break bracket extension
2 gearbox spacers
Radius arm spacers
Comp spec drag link
Some of this is needed, some not depending on if you want a lift thats got the height but may not work great on and off road. It has taken me 3 years to become happy with the handling of this setup and the only issue I am still chasing is front flex.
Thats the plan as I dont like the idea of drop boxes on SWB Patrols as it looses a fair deal of ramp over angle compared to the LWB. I will end up getting superior superflex arms in the far future.sounds about right,
thats my plans for my shorty...
start with the basic's and add more as i feel thats needed or i want.
im gonna buy the 3" kit Big O (3" coils and 4" shocks) does and some 15mm+ XHD LCA.
as for your flex issue KillaMav; when ya can.. get some 4" droped radius arms with GU slotted bushes.
I had double cardinal for my 4 inch lift and it was huge waste of money, do a high pinion rear its 1/3 of cost and uses cheaper stock part.