Well AMC... the
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AMC did a number of strange things mixing Ford and GM parts on a regular basis. AMC grew out of Nash after Nash (remember the Rambler?) purchased the dying Hudson Corporation. Nash started on the "adopt what works" concept at that point lifting the entire front suspension from the Hudson along with the "Monobuilt" frame/body that Hudson pioneered. We call it "Unibody" today. Invented, by Hudson, circa 1950. And yes, I have been a proud owner of a 1953 Hudson Hornet with the Twin-H Power option on my 308 cuin (thats a 5.05L) Flat Head inline 6 with a 4 speed Automatic behind it. My first car... And no, I will not admit to just how early in the 60s that was...