Those hard lines aren't the only parts to deteriorate, rubber breaks down over time too. So while you've replaced the rusting lines, the hoses they attach to could also stand to be replaced.
Save $4.07
Fine Lines
HSP4271OM- 68-70 AMX/Javelin, 69 Rambler SC, 70 Rebel Front Brake Hose, Disc; Rubber
Sale price$36.66
Regular price$40.73
Save $2.22
The Right Stuff Detailing
HSP6831OM- 68-69 Ford Mustang/Mercury Cougar, 8cyl w/31 Spline Rear Axle, Rear Brake Hose; Rubber
Sale price$19.99
Regular price$22.21
Save $4.06
Fine Lines
HSP4031OM- 66 Chevy Bel Air, Biscayne, Impala; Rear Brake Hose; Rubber
Sale price$36.57
Regular price$40.63
Save $4.31
Fine Lines
HSP7101OM- 71-72 Chevy C10, Right-Front Brake Hose; Rubber
Sale price$38.84
Regular price$43.15