Having swapped my D4's shocks for MY09 D3 ones, I can vouch that they can be used. There are slight differences in the spring seat position on both front and rear shocks. The D4's are considerably firmer both on slow-medium bump and on rebound. I may temporarily refit at least the rears for outback trips because the rears are easy enough to change-over. The fronts are more difficult to change due to access to the top nuts but an angled ratched spanner is reported to make the task much easier.
 
I'm still not overly impressed with the MY09 D3 shocks (earlier ones may be different) because they still have what seems to be excessive slow-medium bump, although the rebound, especially the rears, seems a good compromise for use between unladen and laden. Hence I'm keeping an ear to the ground on how the Greek ones ride. I'm fussy about shocks, having had Konis on a D2 revalved to soften the bump, although the rears had to go back to standard to accomodate loaded use.
 
Edit: The D4 shocks were fine at 80-100 kph on rough gravel roads where they were constantly working, but quite harsh where there was an occasional bump or patch on a relatively smooth surface or at slow speeds.  Slow downhill corrugations shook the vehicle terribly, prompting me to stop then creep along at walking pace.
				
			 
			
		 
			
				
			
			
				MY21.5 L405 D350 Vogue SE with 19s.  Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
			
			
		 
	
Bookmarks