Yes it’s just that easy. You know, I have come up at a dead end dealing with my auto supply. I also have come up with numbers like 3103, but here, everything has come up as not available. I was asking for numbers so I can try going a different route.
Hurry, only one left. https://www.ebay.com/itm/1840474332...6e08cd7450cbbdddc64c6cf2e8891f6d48747c6d56d2c
where is "here"? If you're in the US, then it should be available from any auto parts store in a day or two. If you're in another country, it might take longer. I just looked up from three sources, two local and one mail order, they all have it in stock in a nearby big city If you put your location in your profile, then we can tell where you are, and offer more useful advice.
Not real surprising that the part is hard to find up there. It looks like National seals for some applications are stocked, but not older ones.
here are some Chrysler part numbers for the seal...they must have changed the design over the years. The first is a number from the early 50s, the last is from the 70s. OEM / Interchange Numbers: 1618683, 1631169, 1737771, 2536481, 2536694, 2899532, 3418494, 3418495, 3751235, 3830109
If you are unable to find a local source I have some in stock but, any local machine shop that rebuilds any pre-2000 Mopar engine is likely to have one.