The tubing connects to the air dryer and the tubing routes to a tee on the rear of the vehicle along the length of the right-hand frame by snap-in provisions on the brake/fuel/vapor clips. The tubing connects the rear shock absorbers from the tee. The tubing includes spring clip connections with molded sealing shoulders in the retainer.
Clean the connector and clean the surrounding area before disconnecting any tubing. Squeeze the spring clip to release the connector. To reassemble, use petroleum jelly to lightly lubricate and push the tubing and connector fully into the fitting.