Jacques, I've seen that joiner before too.
On the rear, yours is almost correct, but you'll see there is a threaded hole just under the spring on the axle which is for a securing clamp where the pipe should go. That way there is less risk of crushing the pipe when reversing.
I'll have a look at the FGT which is original, and which also means should be replaced for safety, the only major difference is where the rear line connects to the flexible hose - because the winch is in the way the mounting bracket is on the winch mount.