I've modelled and printed a replacement bushing for the rear seat of a 1997 Jeep Wrangler TJ. I had the plastic bushing on one side of the tub but not the other. The genuine Mopar part is 5103469AA Bushing-Pivot but this could be used as a temporary fix. https://makerworld.com/en/models/81695#profileId-86986 Hope that it helps someone else!