Changing out heater hoses

[fixkick]

yes, the worm gear clamps can work great.
just needs spin-tight tool to do that easy.  hex driver.
the stock clamps there are not easy to remove at all. (down below)
the advantage of the factory clamps are easy install , in a factory,
and later if the hose shrinks (most good hoses dont) but if did, the worm gear clamp fails, (may)
There is nothing really wrong with the screw clamps if set at the right angle, and not so that Mr. rubber man only can reach it.
but both clamp types suffer for that problem. (just one spot there behind the pump,  what angle there , you might think what is best for you.
good luck with your car !

  [I just found out there is no clamp option. New worm screw clamps required due to a hose dimension change.  The old hoses were 1/2" ID and 1" OD with a 1/4" wall thickness. The new hoses, at least # 16 (first to arrive) has an ID of 1/2" but an OD of  only 3/4" with  a 1/8" wall thickness.  Why the thickness reduction? Maybe cheaper to make? Maybe the thinner ones are stronger or easier to replace? No way to know but the replacement I got is thinner and lighter so the original clamps won't work. No big deal but I do find this strange. Just a heads up for anyone else replacing any of the hoses to check the outer diameter of the original and the replacement.]

this car is 100% metric (except lug bolts?) IIRC or rim diameters wheels in inches,  3000 parts all metric. (Like Ivory soap 99.99% pure)
the car is metric and so are the hoses.  that is why USA hoses (imperial inches) do not match.
sorry about that but USA is last place on earth with inches.