If you have lifted your FJ40, there is a good chance your old lines are stretched. This is dangerous, they may break under articulation leaving you with NO BRAKES!
We came up with a line that works great. We use the same line front or rear. It is a stainless steel braided teflon line. It is 23" long, so it even covers the spring over rigs. The ends are like you factory, female 10mm at the frame and male 10mm at the T Block.
Extended Front or Rear Brake Line fits 7/70 to 9/83 FJ40's only.