Longer travel inserts for wagon struts

[Dion.]

hey guys a couple of years ago i built a 4wd 80 model leone sedan i bought the stuts s/hand as a complete unit they were the standard houseing with a longer insert however i never found out what they were out of has anyone ever seen the same sort of thing if so can you tell me what inserts will fit that have more travell than the stock units. as iam about to start a build on a 83 wagon. and i want to set the susspesion up yhe same. any help would be great ta.