free gearbox case

[spgftw]

I think it was from a 4 speed? Maybe not the most wanted variety, but perhaps somebody out there can put it to good use.

Free to a good home, if you pay the shipping from Oregon...

-Paul

[Crazyswede]

Makes a good engine storage stand

[DrewP]

Goddamn, why did I never think of that.

[spgftw]

If I had a spare engine I'd stand it right there. :) But nope, it sits lonely on the shelf. No takers by Saturday, it's getting recycled.

[squaab99t]

If I had a spare engine I'd stand it right there. :) But nope, it sits lonely on the shelf. No takers by Saturday, it's getting recycled.

Can you take a shot from the top? Plan view. Looking for the diagonal ribs.

[Crazyswede]

Or just posy the casting number

[spgftw]

I'll get a top shot. The ribs are perpendicular not diagonal, that much I know...

[SalemSaab]

Hmm as much as I love raiding all your parts my shed is pretty full with various transmissions I got in WA already

[spgftw]

Here's a bottom shot:

[spgftw]

and a top shot:

[Crazyswede]

that is the strongest of the three chill cast four speed gearboxes.

[Jordan]

I don't think so

[Geoff]

http://www.saabcentral.com/forums/showthread.php?t=136416

There are three 4-speed Chillcast boxes – the most common being 870423 and 871239, the first number is the strongest of the two and should be used for high HP and torque. But, there are many sub-models and variations and not every Chillcast box is the same.
The stronger of the two boxes shows three diagonal ridges on the corner of the oil pan. This is what you look for showing you it is the stronger variant.

Possibly some conflicting information above? Or maybe some 870423 boxes had diagonal ribs and some had straight ribs?

Luke told me something about the surface appearance and corrosion of the chillcast boxes. Maybe he can tell by looking at the material?

[Crazyswede]

I don't think so

870423 refers to the later 4 speed chillcast box used in the 77-79 turbos. whether there are variations in the 870423 number i cannot say

[Geoff]

What does the date stamp on the side say?