The rear suspension coils need something done to get the back of the car higher.
Last time I used Gabriel pump up shockers but the air bag in them has developed a leak only 18 moths old.
Any thing else on the market in ideas compared to buying new springs.
Or should I have bought Monroe brand instead..?
My personal opinion only but I wouldn't bother with air shocks as they cost more to buy than new springs. You can get some sort of device that fits inside the coil but they all only treat the symptoms ...not the cause. Another alternative is find a low mileage wreck in a wreckers and grab the springs - shouldn't be more than $40 for the pair.
Have a look at these i do a lot off towing and want to put air bags in my VS STATESMAN
AIR BAGS, Other Suspension, Steering, Shocks, Struts items at low prices on eBay.com.au
id recommed probag.com.au if u want propper airbags in the back of your stato