please help with 1966 transmission i.d.

[earlyaircooled]

I have a 1966 Porsche 911 transmission that I want to i.d. I don't have a 65-67 technical specifications book which I think would help. Here is what all of the marking say:

39/66 ( I assume that means 3-9-1966 build date?)

901 301 101 OR

serial number: 235825

I believe this to be a 1966, 911, 5 speed. It looks to be aluminum and not magnesium which is right for 66. Can anyone validate that that it is a 66 for me? Also it rare or "special" in anyway, for example special gears sets, Nurinburg or airport gearing, came from an "S" etc?

Thank you,

David Hanning

[rvanderpyl]

You need the number on the bottom 'seam' should be something like 901/1 901/2 etc.

[earlyaircooled]

The number on the bottom seam is 902/1. The transmission was in a 1965, 911 but the transmission was replaced with this one around 1970 in Europe.

Does 902/1 make it a 912?

Thanks

[911s55]

902/1 boxes were used in 911s and 912s until 1968, I believe yours would be 39th week of 1966. I have a 902/16 in my 71' 911, cool unit and works great.

[earlyaircooled]

Thank you for the answer that helps a lot.

David