This is the fuel pipe connector just in front of the differential of our TR4A. I've never seen a hose connection without clamps. But this one has been here for over 50 years without leaking. At the most, it would see about 2 psi pressure. Would normal maintenance have this hose replaced periodically or just leave well enough alone? With no clamp, they must be a pain to slip over the fuel line. Plus, I guess one would have to drain the tank to install.