280 SE 3.5:
3.46

300 SEL 3.5:
3.69 - up to February 1971 (US-ver. only up to Feb. 1971)
3.46 - from February 1971

280 SE/SEL 4.5:
3.27

For 300 SEL 4.5:
3.23 (but now no longer available and EPC says 3.27)


Salut!