A suspension strut assembly comprises a suspension strut 10 formed by a strut housing 10a having first and second ends and an outer surface, and a strut rod 10b which is telescopically engaged in the first end of the strut housing 10a. A thread 11a is formed on a sleeve 11 which is slideably engaged on the outside of the strut housing 10a. An anti-roll bar collar 13 is screwingly engaged on the outer surface of the strut housing 10a. The collar 13 has a plate 13a extending outwardly thereof for engaging with an anti-roll bar. An annular spring seat 14 is also screwingly engaged on the outer surface of the strut housing 10b between the collar 13 and the first end of the strut housing 10a. The collar 13 and spring seat 14 are each windable along the housing 10a to vary their longitudinal positions on the housing 10a.