I've got the self levelling shock on my 6month old Laredo and never experienced this 'clunk' issue, but if you search through the WK2 forum there's plenty of posts on this.
Ordered 2nd Nov 2011 - Arrived 30th March 2012, GC Laredo 3.0L Deisel, Stone White with Towbar, Roof Bars, Thule Roof Basket and Darkest Legal Tint. Front Recovery hook installed 5th June:thumbsup:
Rockrails and skid plates installed 2nd Sept. Long Range Fuel tank fitted 9th Sept. Bullbar, lift kit & new tyres? Who knows......