60's 70's reclining b body seats

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could you get reclining seats in 60's - 70's mopars ?

over here just about all cars with buckets( all brands) had reclining buckets , just seems weird that they weren't popular over there :eusa_think:

that said has there ever been a "conversion" or kit for making our "upright " seats recline ?
has anyone done this ?

I know about the 6 way seat track, but I'm talking either 4-5 positions with a side leaver or as with older reclining buckets a "roll" down function on the side

thanks