My Hydraulic clutch line broke on 92 YJ 5 speed manual (obviously)
It broke at the connection where the plastic line meets the quick disconnect adapter.
I could not find a replacement anywhere; Dealer ship, online, salvage, nothing.
So I disconnected the line from the Master cylinder, and removed the quick disconnect adapter from the metal line coming off the slave.
I took it to our local 'Hose Manufacturing' business (Hydraulic hoses and fire hoses too), and he made me a new one!
He charged me $42.50 It is a rubber brake hose with two new ends!
I showed him pipe adapter that connected with the 'Quick Disconnect" and he said, I got that part. And he had the L shape insert that goes into the slave.
He measured the old line (I think it was like 44" and was hard plastic, and molded). The new rubber hose works great.
I did find one on Ebay and the guy wanted $40 + $10 for shipping, and it was used.
So if it happens to you, go to the brake line repair guy!