Chevrolet Silverado / GMC Sierra. Manual — part 2381
and may cause brake system failure. Carefully route and
retain replacement brake pipes. Always use the correct
fasteners and the original location for replacement brake
pipes. Failure to properly route and retain brake pipes may
cause damage to the brake pipes and cause brake system
failure.
NOTE:
Refer to Brake Fluid Effects on Paint and Electrical Components
Notice .
IMPORTANT: When servicing the brake pipes, note the following:
If sectioning the brake pipe, use replacement pipe of the
same type and outside diameter.
Use fittings of the appropriate size and type.
Only create flares of the same type or design as originally
equipped on the vehicle.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 17: Sectioning Brake Pipe Using Pipe Cutter
Courtesy of GENERAL MOTORS CORP.
1. Inspect the area of brake pipe to be repaired or replaced.
2. Release the brake pipe to be replaced from the retainers, as required.
3. Select an appropriate location to section the brake pipe, if necessary.
Allow adequate clearance in order to maneuver the J 45405 . See Special Tools.
Avoid sectioning the brake pipe at bends or mounting points.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
4. Using a string or wire, measure the length of the pipe to be replaced including all pipe
bends.
5. Add to the measurement taken the appropriate additional length required for each flare to
be created.
Specification:
6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe
9.50 mm (0.374 in) for 6.35 mm (1/4 in) diameter pipe
12.67 mm (0.499 in) for 7.94 mm (5/16 in) diameter pipe
6. Using the pipe cutter included in the J 45405 , carefully cut the brake pipe squarely to the
measured length. See Special Tools.
7. Remove the sectioned brake pipe from the vehicle.
8. Select the appropriate size of brake pipe and tube nuts, as necessary. The brake pipe outside
diameter determines brake pipe size.
IMPORTANT: Ensure that the brake pipe end to be flared is cut at a square,
90 degree angle to the pipe length.
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 18: Stripping Nylon Coating From Brake Pipe Ends
Courtesy of GENERAL MOTORS CORP.
9. Strip the nylon coating from the brake pipe end to be flared, if necessary.
Select the appropriate blade on the coating stripping tool included in the J 45405 , by
unthreading the blade block from the stripping tool and installing the block with the
desired blade facing the tool rollers. See Special Tools.
Specification:
6.35 mm (0.250 in) blade for 4.76 mm (3/16 in) diameter pipe
9.50 mm (0.374 in) blade for 6.35 mm (1/4 in) and 7.94 mm (5/16 in) diameter
pipe
2008 Chevrolet Silverado 1500
2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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