I have figured out why the power seat in my '63 convertible moves so slowly.  The motor works fine by itself, but the gears in the power seat transmission are really sticky.  When you turn the input shaft by hand it is hard to make it turn, they are so sticky.  What do you clean the old stuff off with?  The gears are nylon.  I don't want to melt them with a solvent.  After getting the sticky off, what type of lubricant…

"I need to replace the foam in the front seat cushion of my '63 convertible.  Do pre-fabricated foam sets exist for this car?  All I find are ones for the muscle cars and sports cars.  Any recommendations for the type and thickness of foam to get, if I can't find pre-fabs?"

After purchasing my '63 convertible and driving it occasionally for a year I decided that I would replace my leased 2001 DTS with a 1970 Eldorado, which has now been my daily driver for 9 years.  I repainted it to look just like the Eldorado in the 1970 Cadillac brochure.  It is Cinnamon with a dark brown vinyl roof.  I think it is prettier than my '63.