so I was going through the Crosstour I had purchased this weekend and noticed that there are no rear suspension springs to speak of with exception to front coil over shock. The rear shock is a Fox Float shock and has an air fitting on it. This is the first time I had ever seen one of these, they are quite expensive looking them up, any input on these would be greatly appreciated, just seems odd that one shock would dop what a shock and 2 adjustable springs would do.