i bought koni suspension used one. struts and spring the model no is 8041 1153SPORT and they have gmax springs on them which are G-MAX 30 HO....

the guy i bought them offf told me they were height adjsutable but i cant seem to adjsut the height cos there aint no coil sleeve or anything. There is a perch were the spring sits on and another slot in the strut were the perch may slide into about 1.5 m lower down the strut.
also are these height and dampning adjustable. if so how can they be adjusted.
thanks