For sale: 3 cm stiff springs, guaranteed. I bought them from their owner, who guaranteed them. I've had them for about two months and haven't used them since I bought them. I bought them from Desert, and they are known to those who follow desert suspension manufacturing. Their new price is 790. They were installed on a Hilux without a double. Selling to the highest bidder. The highest bid reached 250, and the sale is not far off.