gu rear coil suspension

Have you tried polyairs,inflate only when needed eg towing dont need to change anything else,cheapest option

G'day Ace,
I originally had OME 2" lift with the Konis and then added Polyairs as well.
It still sagged in the rear when fully loaded (includes very heavy steel rear bar and dual wheel carriers, 145 litre long range tank, full recovery kit, heavy slide-out drawer and 40 litre fridge, roof rack etc). The truck weighes just over 3000kg before I load it up for a trip and hook camper trailer on.
I've now got Lovells 5" rear and 4" front springs as well as the Polyairs which i run @ around 20psi all the time. No more saggy bum.
It actually sits about 3" higher than a bog-stock new Patrol with nothing loaded up.
Well recommended.

I was thinking about polyairs myself but most shops didnt think they would work well articulation wise because of slow rutted tracks we tend to go looking for.....
They are great for straight line towing on good roads.....
I ended up fitting an extended coil spring which is 20mm thick but made the mistake of puting in an 8-coil 125mm spring which still allows the vehicle to sag under load but without load it gave great lift.....

I ended up fitting a 7-coil spring and it is very hard to compress and handles the weight very well....

Get onto a quality spring mob and tell them what you do and carry and what you want, someone like Ironman (look them up on this site), ARB, Lovells, TJM and get springs designed for your use, then go the polyairs also but have the right springs first. I have ARB under mine and fully loaded it doesnt sag much at all.

www.truckspring.com. Half the price of polyairs, no need to change springs, can put money towards a better quality set of shocks.
Rolande

Ace,
I've never been a fan of the Polyairs, I had a set in my GQ when I bought it, when I let the air out the car dropped 15mm and ended up lobsided, some people put them on to compensate for stuffed springs as I found out. Polyairs hinder your articulation when off road in the rougher stuff. Personally I believe a good set of springs and shocks is the way to go, that way you know exactly where the vehicle sits. If you're fully loaded and a Polyair bursts or gets a puncture this can effect the handling dramatically, even one of the inflation / deflation tubes could get holed same effect. A lot of people use them, they have their place I'm sure, I just prefer to go with the "traditional" approach myself. I fitted OME springs and shocks to my GQ towed my camper trailer everywhere no problem at all, I now have a GU and I've done the same, I got the heavy duty springs all round so it sits a bit high at the moment, I got the heavy duty springs up front because I knew I would be fitting other stuff, a L/R tank and a winch for example, saves getting two sets of springs.
In my opinion if you can afford it it's always better to fit new stuff all round especially shocks keeps the handling on track.
You may want to consider the ball weight of your camper trailer, it may be a tad high, you may have to move some stuff around on the trailer to balance things out a bit.

thanks to all of you, Adrian.