Front Brake Lines for 1973-1978 GM 4WD at 3-4 Inches of Lift

About this part

Front Brake Lines, fitment-checked

Skyjacker splits its GM front brake lines three ways — by era, by GVWR and by lift band — and this is the early light-duty pair: 1973-1978 Blazer, K10, K20 and their GMC equivalents, rated 7200 GVWR or less, at 3-4 in. of lift.

Getting the right GM brake line means answering three questions, not one. The era here is 1973-1978, covering the Blazer, K10 and K20 pickups and the matching GMC trucks. The weight rating is 7200 GVWR or less, which rules out the heavy-duty three-quarter and one-ton chassis. And the lift band is 3-4 in. — the shallower of the two Skyjacker offers for this era. Get any of the three wrong and the line is either too short at droop or longer than it needs to be. Supplied as a pair for the front axle.