Dom, have a look here:
Install endlink. To eliminate sway bar preload (recommended), leave one endlink bolt disconnected (other endlink bolts should be connected). Place car (all 4 wheels) on flat ground. Then adjust the length of the disconnected endlink until the bolt inserts easily into the sway bar. That will be the length setting to
use. Assemble and tighten that endlink accordingly.
Make sure that the endlinks have good articulation after tightening down the jam nuts. Grab the hex buckle and rotate left to right, the entire endlink should be able to rotate back and forth in an approx. 50 deg range. If not, loosen one jam nut and adjust the bearing, then tighten the jam nut making sure to keep the bearings in alignment.
http://www.splparts.com/content/SPLREZ33.pdf