The following information from the 1956 & 62 Universal parts lists covering the DJ3A including Surrey Gala
Whats that they say “A picture is worth a thousand words”.
Hope the following pics help.
King Seely Speedometer used on the early DJ3A thru to 56337-12571
Stewart Warner Speedometer (6 & 12v) used on DJ after 56337-12570
WALCKS DJ3A WIRING HARNESS