The driver side and passenger side springs are not interchangeable, the free camber of the driver's side spring being greater to compensate for the extra weight (driver, etc.) carried on that side of the vehicle.
88" front petrol 4 cyl: driver 170mm, passenger 152mm
88" front diesel 4 cyl: driver 143mm, passenger 130mm
109" front petrol 4 cyl: driver 142.9mm, passenger 130mm
88" rear petrol 4 cyl: driver 170mm, passenger 152mm
88" rear diesel 4 cyl: driver 170mm, passenger 152mm
109" rear petrol 4 cyl: driver 235mm, passenger 208mm
109" rear diesel 4 cyl: driver 235mm, passenger 208mm