We have a previous thread where we discussed speedos in full I remembered. :-)

http://www.mysandman.com.au/forums/s...ght=hq+speedos

Mauser

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Quote Originally Posted by maxsandman View Post
Im not an expert & don't pretend to be one, but im sure I was told by holden years ago that 140 mph speedos were available in factory 308 vehicles....& sure ive seen heaps of original 4 door GTS 253s with standard speedos in GTS dashes. cheers Max
I'm sure you could of ordered one through spare parts but the 140mph/220kph speedos were in the GTS models and the Sandman. Noticing that the needle in those are the only ones to match the Tacho.

I think we even determined that the '72 SS had the standard speedo as well.

Mauser