Front Brake Lines 79-87 GM HD 3/4- 1 Ton

The SKYJACKER Front Brake Lines for 1979–1987 GM HD 3/4-ton and 1-ton trucks is a DOT-approved braided stainless-steel brake hose kit engineered for vehicles running 6 to 8 inches of suspension lift. When a truck is raised, the original rubber brake lines stretch and compress beyond their design tolerances, compromising brake modulation and increasing failure risk. These reinforced lines maintain proper brake geometry and line length under lifted suspension, restoring factory-specification brake performance and pedal feel.

Braided stainless-steel construction resists abrasion, UV degradation, and corrosion—critical for trucks operating in harsh environments or extended storage. The kit is sized specifically for the front axle of fullsize GM trucks in the 1979–1987 generation, ensuring precise fit without routing issues or line contact with suspension components during compression and extension cycles. DOT approval confirms the hose meets federal safety standards for brake fluid pressure and thermal cycling, a requirement for legal road operation.

This kit addresses a common failure point in lifted truck builds. Operators who have raised their GM fullsize trucks for off-road capability, payload capacity, or stance modification find that factory brake lines develop kinks, leak, or fail under the altered geometry. The SKYJACKER lines accommodate the extended suspension travel, preventing the brake system from becoming a limiting safety factor in field work or daily operation.

Installation requires no fabrication or welding—the lines are pre-assembled and ready to connect to factory brake calipers and hardlines, reducing downtime and eliminating custom work risk.