What I mentioned was the "Harmonic Balancer Puller" The engine crankshaft pulley, is also called the Harmonic balancer, Harmonic Dampener, Harmonic Pulley, Crankshaft Dampener and many other names. In the 134's it is called the crankshaft pulley, my bad. Sorry for the confusion I introduced, I have been around too long! The Crankshaft Pulley as it is officially called, usually will require a puller. I don't think you will have any trouble with that. The front cover needs to be centered on the front oil seal. So you need to loosen the pan and put the cover on first so the seal can center. The best way to do this is to put the oil pan on last. To perform this pull the crankshaft pulley, remove the water pump etc. and the front cover and oil pan. Then reinstall a new seal in the cover and install the cover loosely. Install the Crankshaft Pulley. Square up the bottom of the cover so it will match the oil pan and tighten the cover. Then install a new pan gasket and reinstall the pan. I have seen some successful attempts at just dropping the oil pan down and not completely removing it. Sometimes you will get away with this, usually on a fairly new engine or rebuild. Typically the oil pan gasket will break apart when you loosen and drop the pan down. You don't need to remove the grill, though the radiator might crowd your style a bit. Removing the radiator will give you sufficient room.
The fitting in the front cover can be repaired by a competent shop. You could also just get a used one. KW has some.
https://www.kaiserwillys.com/product...-4-134-engine/