With 3" springs I have heard they are stiffer than Mr Buzooka at a Gaybar.
Most 2" springs are hard enough and need to be softened with leafs removed.
Not many people run 3" springs, here, outers or anywhere. You may have to try
www.Pirate4x4.com as trailgear is american branding and more commonly bought. As postage would be a killer for them to be sent here to Aus or Baa land (nz)