A bit of kaiser'\-AMC transition history
in 1970 kiaser sold AMC the Jeep mark, the only changes that year were by Kaiser, they did not change the windshield though
they also did not mess with the 71, instead they re-engineered the front of the Jeep by adding 3 inches for the 72 lineup. Why they did this was to introduce the AMC strait six. The V6 that Kaiser had bought from Buick was one of the legendary engines of early CJs, but Buick was bidding to buy it back and AMC saw that as a bonus to recover capitol extended to buy Jeep. Plus they had a great strait six to put in the CJ platform.
Also changed was the t case, they dropped the
T-18 to go with the t20 this allowed them to us a AMC rear end, the corporate 20 and not have to outsource the
Dana 44 , also they went with a more modern front axle, the
Dana 30 which had open knuckles that are less maintenance heavy as the d27. Both the front axles d27 and
Dana 30 have the sane ring size so they had equal strength. many guys with D27s will not change them out as they are great axles and have proven to last 40 plus years.
Once they started they decided to re-engineer the entire platform and released the
CJ7 in 1976 and dropping the
CJ6 . OK so the
CJ5 stayed on until the mid 80s as it was a great seller but it was still outclassed by the
CJ7 in size and width. A huge improvement to the universal platform.
so, your problem, as well as the rest of us that have early CJs (pre 72) is finding some of the parts are obsolescent, as are these wipers. try collins bros, and a few others to find if they can source them for you, or do a arm retro upgradedd and buy modern blades