Any leak in a brake system is something to be concerned about. When fluid gets on the lining it can cause the brakes to lock up.
Wheel cylinders also stick when they become cruddy inside. It could also have a collapsed brake hose which can cause a similar problem.
Fred

Last edited by rfs56trk; 01/12/2018 4:13 PM.
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine