front suspension

[procta]

Ok lads, i think something isn't right here, we stripped the car down to swop the dampers over, as one has failed. I think i was given the wrong dampers for the car, as the replacement rears were like the metros standard suspension it was that f*cking bouncy!  My mate gave me a set of Gti ones, the thinkness was night and day!! 
Now we have had a the same failure again hence why the car is in bits and a f*cked spring now.
The damper we took off has these two pieces, the dust cover i can swop over, but the rubber cone buffer thing, my replacement damper doesn't have, My dad thinks it needs to go on, but i am not sure what the crack is anymore, with the f*ck on i had with the rear of the car. 
Since the fools at the motors discount gave me the shite that is on the car now, the car never felt stable. 
i am starting to wonder if they gave me a mix match of parts, as the rears looked like they were from a lower spec 306, that's if they were for the 306 even!
i only just got the car at the time, so we didn't know what the car was.   
 


these are the dampers i bought 
http://www.ebay.co.uk/itm/231302033881?_...EBIDX%3AIT
Any ideas or info you lads can give me, as i am starting are we missing parts etc.
Cheers lads.