[Jim Hunter]

Hi,

G-50 is introduced and used first in 3.2 1987 911
None of the G-50 series was made of magnesium case.
Short bellhousing are all 1987-89 units and some later ones.
When 1990 C2 3.6 was introduced the G-50 was "officially called" G-64.
Early 3.2 versus later 3.6 bellhousings are also shorter in the flywheel side as the later ones used the "dual mass" flywheel/clutch setup who is more thick than the earlier.
6 speed was an option on the first 993 (G50/21 & G50/20).
Hydraylic clutch is standard on all years G-50.
Most of them have a 9:31 R&P.

What do you want to install beetle or bus ?
In a beetle requires major modifications and if you want a 6spd is required to remove your frame horns completely and to scract built your engine mounts to "floating" type as vanagons and 911 used.

Good luck