If you go to the dealer to buy new ones, you will be back in no time
at all to get them replaced again, and again, and again...
I help maintain a fleet of vehicles and many of them are 4x4 s10
Blazers, AWD Astros, and G30 diesel vans. Leaks are very common on
these crimped lines, and new OEM don't last long.
I take them to a local hydrallic line shop complete as they come off
the vehicle. They remove (cut)the ends, weld the original ends to new
fittings and then fit them with the correct steel braided length
line. Never a problem after that. Be sure to pick up some rubber
coated clamps and install to minimize vibration and rubs.
The cost was just slightly more than the OEM, but it is the last time
you have to mess with it.
Good luck, James