318 convertible differentials - what gears & type of rears were offered?

[Cobra Jet]

I was link hopping and came across another site which had some E30/M42 faqs. Among the listed faqs with regards to the rear differentials offered, it stated that the convertible 318's had 4.27 gearing (I think it was non-LSD)... Is this true?

Were there rear gearing options for the 318 convertibles or did they all come with the same rear gearing?

Were all convertbles non-LSD's?

[Flood]

Some convertibles had 4.27 LSDs.

[Cobra Jet]

Is there a tag on the rear or a way of decoding what gears or type it may be?

[beegeezy]

The tag on the diff will tell you the ratio, and an "s" after it would indicate lsd.