A Bostom dealer felt that the rear hydropneumatic shocks need replacement. Car has 130K miles. I dont trust dealer for several reasons. Anyhow, the car is bouncing like a Lincoln Town Car and it is interesting to note that the spring factor is identical on both sides of the car. This points me towards a self leveling system failure as opposed to that of both rear shocks (whats the probability of simultaneous failure of both rear shocks anyway??). I hear it might be the air cell. any comments thoughts ?? How much or how difficult to replace this component if it is the culprit ?
thanks in advance