hsv5000

Hi again, another problem that I just discovered. My passenger side seat
(non-power) has a seat height adjuster. I have noticed that every time I go
over a bump the seat feels loose and passengers have complained of a lot of
movement. I checked it today and noticed that while playing with the seat
height adjuster, it doesnt seem to click in properly, after even more playing
around it now doesnt catch on at all and the seat is always raised. I cant get
it to latch on to any position. Are the linkages etc easy to get to, or do
these things have a tendency to wear out.