Brake line: 8.75 vs 8.25

An A-body 8 3/4 and 8.25” will not have the same brake lines regardless of the year of the A-body 8 3/4, because they’re not even the same overall width.

An A-body 8 3/4 is 52 5/8” flange to flange, an A-body 8.25” is 51.5”