Caster plates and bushes are a very poor way to correct caster, your much better off spending the extra coin and buying Superior Engineering drop boxes instead.

With such a huge lift, and caster plates, you radius arms will still be on a mean downward angle, not only does this cause poor handling but also causes binding of the radius arm bushes which will restrict articulation and lead to premature wear. Drop boxes bring the rear of the radius arm down, restoring factory geometry, and improving, handling and articulation. One step up from this again would be Superior hybrid radius arms.

 

That is going to be a big lift especially for a shorty, Sim79 or others with SWB are best to help with suspension, but caster plates were a very early fix for Patrol suspension geometry better methods have been adopted. As suggested drop boxes, dropped arms would be the better option and don't use the coil spacers.

Curious my self and hope someone can answer my question but I was told SWB actually lift about an 1" higher then LWB. For example 2" lift = 3"on SWB, 4" lift = 5" on SWB etc.

 

I would also suggest drop boxes.

Expect issues with driveline angles with a lift that high on a shorty.

 

Any driveline issues with the 6 inch lift?
How does it go in steep off camber terrain? ;-)

I regret doing my 4 inch lift, such a huge waste of time and money, over kill for 35s.
Wish I had just done a 2 inch, heaps cheaper , simpler and they drive like they are rails so much lower.
Less heat from cops.

2 inch + triple bypass shocks = ultimate set up

 

I didn't notice it was a shorty. What these blokes said ^^

Keep it low mate. Save you a lot of dramas.

 

Lots of threads on this, just have a quick search. I found these:

http://www.patrol4x4.com/forum/suspension-57/swb-suspension-lift-58286/

http://www.patrol4x4.com/forum/suspension-57/shorty-build-up-60848/

http://www.patrol4x4.com/forum/suspension-57/lift-tyres-swb-mav-patrol-61501/

 

Mate I've got a set of castor plates you can buy off me if you like. I never ended up fitting them.

In the end I ended up with drop boxes.