Fig. 3. Schematics of detailed views referenced in Fig. 2. Component parts are (A) post driver top mount, (B) hydraulic ports (fitted to universal agricultural quick couplers), (C) inner pipe mounting bracket (flat bar parts welded to inner pipe section and bolted to tractor bumper unit), (D) post driver (front view), (E) detent for drive adaptor lock pin, (F) post driver bottom mount, and (G) upper mount connecting inner pipe section to support structure.