If it were me, I'd replace all of the steel and rubber brake lines 100% front to back. The lines fail from the inside out...not worth the risk for an inexpensive and easy weekends work.
Be safe...
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD