Restore Torsion Bar Locks:
When the two chassis tails are spread apart for deployment of the gun, a long steel pin on each side is automatically pushed forward by “D” handles (seen in the upper image) and driven into holes (seen in the middle image) that lock the torsion suspension against vertical movement for stability when firing.
These long steel pins were thoroughly corroded in their housings. The image below shows one of them after disassembly and cleaning.
