A height control linkage for a vehicle cab suspension comprising elongated lower and upper linkage members, each of which has upper and lower ends. The lower linkage member has external, vertically spaced-apart, alternating ridges and grooves formed thereon for at least a portion thereof above its lower end. The lower end of the upper linkage member has a generally C-shaped cross-sectional portion defining a gap. The generally C-shaped portion of the upper linkage member has internal, vertically spaced-apart, alternating ridges and grooves which are complementary to the external ridges and grooves of the lower linkage member. The upper end of the lower linkage member is adapted to be vertically adjustably snap-fitted through the gap of the upper linkage member to connect the lower linkage member to the upper linkage member. A snap-clip is provided to maintain the linkage members in their connected relationship. Rotation of one of the linkage members with respect to the other linkage member does not result in a change in the length of the linkage. The linkage members and the snap-clip are preferably comprised of a molded plastic material. The linkage of this invention may be used to link components other than vehicle cab suspensions.