Hi Rob
I fitted non standard gas heavy duty shocks to my Patrol http://www.arb.com.au/products/old-m...argers-shocks/ and I think if I was able to do it over I would fit the standard Nissan ones. I also fitted the Poly air bags at the same time.
These heavy duty ones are way too stiff and would be absolutely useless on corugations as you would bounce all over the road.
Mine travel these days is 99.00 % on good roads and as a tractor towing a heavy boat the set up is OK but speed bumps must be taken slowly as you would with a sports car.
My original shockers were totally stuffed when I changed them but I sure had a more pleasant car like ride with them cf to the ubeaut fancy double acting heavy duty gas ones I have now. Probably be brilliant for slow off road mountain climbing tho.
Cheers
Chimo