72 Duster Resurrection
Looks like your new LCA bushings are inserts without metal inner and outer sleeves. Burn the rubber out of the LCAs leave the outer shell from the old rubber bushing intact, leave the inner sleeve thats pressed into the LCA pins intact. Grease up the bushings, by hand press into the arms, by hand press the LCA pins with the inner sleeves still on them right back into the arms. Easy peasy.
Had the prev owner of your LBJ upper arms not knocked the outer shells out of the one upper arm prior to powdercoating, prothane sells the bushing only, like your lowers are, and you could do the same thing burning the rubber out, reusing the inner sleeves and leaving the outer shells alone.