Today I started bringing back the bottom passenger seat. Particularly, I used a dremel tool with a wire brush & a inch wide belt sander to remove rust on the component containing the rectangle metal with 9 coil springs that attaches to the frame that moves forward to enable others to get to the 2nd & 3rd row seats of the '52 Chevrolet Suburban Carryall. It's interesting that over those springs was horses hair & cotton padding & then the vinyl seat material. Small C Clips held everything together underneath without putting holes in the brown seat material. This bottom seat is the worst one & will take the most effort to replace rusted through metal. See pic. And I thank Phil on commenting regarding replacement transmission oil & where to buy it!
