Quote:
humanpotatohybrid wrote:
The specifications section of the manual and the transmission section of the parts list should hold that info.
I don't believe that specific data was ever published as Packard typically only gave the number of teeth in the various drive pinions available for the rear axle options offered.
If no one can provide the actual TPM number for the King-Seeley speedometers Packard used in 54 there is a procedure mentioned by a company dealing with another car and speedometer brand that you might try. I don't remember ever seeing the number printed on the speedo face as the first half of the article mentions but never really looked for it either. The second half with the instructions on calculating the TPM using the gear and helix thread ratios might be helpful if nothing better comes along. Unfortunately it sounds a bit tedious and means removing the speedo from the car. If you do remove the speedo be sure and place a drop or two of oil in the hole in the square part of casting near the cable threads to lubricate the input socket assy and bushing.
http://www.guess-works.com/Tech/speedo.htm In a related brain fart I just remembered
another post from awhile back where this was discussed. In that thread the figure of 1000 was mentioned and confirmed as possible by a forum member that is the owner of a speedo shop. The link I gave to an article on various speedo numbers is no longer working but that 1000 number might be a starting point if a verified number is not found. Another possibility might be a reference book available for speedo shop use that could give a more definitive answer. If you have a local instrument shop in Australia that deals with American cars perhaps a phone call could get a better answer.
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