I presume that door stops/checks are the parts in the door near the pillar that determine how far the door can be opened...
In that case there are two different door checks/stops; the front door checkers are approx. 10mm longer as the ones in the rear.
Replacing these door checks, however, will not bring back the "THUD" sound. The sound you get when closing the door come from locking side and the parts mounted inside the door.
Do you still have the tar isolation plates stuck to the inner-side of the door? If these are gone, the sound will get loose and "clank" as well...
with a minor 600+k