how much stroke to they have ? tighten the gland nut that holds shock body in REALLY well or else it will make a vibrating/rattle noise which will sound horrible.

also nut ontop of camber tops with a rattle gun if u havnt got one tighten as much as u can when car is on ground and has weight on it then hit it round a few times with a hammer!.

take it out make sure its all tight put it back in take it for a quick drive, while their out take em appart see if any oil is leaking, could be a blown seal,