GM 19368465
Flex Hose, Rear

The first step for replacing the rear brake hose involves lifting and supporting the vehicle. First clean all dirt off the brake pipe fitting before removing both tire and wheel assembly. The back up wrench maintains the brake hose fitting as you disconnect the brake pipe fitting while you securely cap both ends to avoid brake fluid loss and contaminations. Begin by discarding the 2 brake hose fitting gaskets and brake hose fitting bolt after removing the brake hose bracket bolt . Begin installation of the brake pipe by positioning the brake hose fitting bolt and two new brake hose fitting gaskets to the brake hose. After installing the brake hose assembly to the caliper you must apply 50 Nm (37 lb ft) of torque to the brake hose fitting bolt for proper assembly. Secure the brake hose bracket bolt with 9 Nm (80 lb in) torque. Link the brake pipe fitting to the brake hose fitting with a back up wrench while tightening it to 17 Nm (13 lb ft). The last step includes bleeding the hydraulic brake system followed by tire and wheel assembly installation.

After raising the vehicle and locating the tire and wheel assembly you must replace them. Remove all dirt from the brake pipe fitting and use the back up wrench on the brake hose fitting to disconnect it while putting a cap on the brake pipe to stop fluid loss and contamination. Undo the brake hose bracket bolt first then detach the brake hose fitting bolt by removing the gaskets. Keep the gaskets out of the system. Position the new brake hose then install both new brake hose fitting gaskets. Fasten the brake hose fitting bolt at 40 N.m and then tighten the brake hose bracket bolt to 12 N.m. Twist the brake pipe fitting to the brake hose fitting and fasten it to 17 N.m (13 lb ft) using a spare wrench. End the process by servicing the hydraulic brake system then placing the wheel assembly and lowering the vehicle.

6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe and 9.50 mm (0.374 in) for 6.35 mm (1/4 in) diameter pipe.

Tighten it to 12 N.m (106 lb in).

Loosen the die clamping screw, select and install the corresponding die set, insert the prepared end of the pipe through the dies, tighten the clamping screw, select the appropriate forming mandrel, and operate the lever to flare the pipe.

Using a backup wrench on the brake hose fitting, connect the brake pipe fitting and tighten it to 17 Nm (13 lb ft).

Strip the nylon coating from the end to be flared using the coating stripping tool from the (J 45405), ensuring the metal surface is not gouged.

Measure the length of the pipe to be replaced, including bends, and add the required length for flares, ensuring the end to be flared is cut squarely at a 90-degree angle.