My G50 appears to have a limited-slip (LSD) diff, and cast into the case is
"8.89", which I assume is month.year of manufacture.

I am aware that for 1989 only there was a turbo G50-equipped 911 with 80%
LSD (the "ordinary" G50 LSD is 40%), and I'm wondering which it is, and
whether there is any way to determine the gearbox/diff ratios from external
details.

Stamped into the case bottom are the numbers K01958 and 25050 2 (there may
be a 1 or 11 in the gap in the latter, but I can't tell due to abrasion).

Cast into the RHS of the gear case is 950.301.102, followed by a circle
containing 3R. Cast into the RHS of the integral bellhousing is 350.301.101
8R. Nowhere does it say Porsche, but that's because it isn't made by
Porsche but by Getrag; it is easily recognizable as a G50.

I paid $1165US for it. In US wreckers a plain short G50 sells for
$1800-1950; a 40% LSD G50 goes for $2750; a turbo G50 for $3750. And free
930 CVs can't be beat.

Andrew Grebneff
<andrew.grebneff@stonebow.otago.ac.nz>
Phone: 0064 (3) 473-8863
Fax: 0064 (3) 479-7527
165 Evans St, Dunedin, New Zealand
Fossil preparator, shell collector, Macintosh and VW & Toyota van nut
1984 Volkswagen Type 25 Caravelle GL (to be fitted with Subaru EG33 engine etc)
1986 CE80 Toyota Corolla DX diesel 1.8 sedan
1989 CE96 Toyota Corolla DX diesel 1.8 van
1989 CT170 Toyota Corona Select 2.0 diesel sedan
1992 CXR10G Toyota Estima Lucida 2.2 turbodiesel (=narrow-bodied Previa)