Early 911 or 912 Tranny Puzzle

[hbhaller]

I’ve got a 1966 912 with a 5 speed gearbox, however the stamped transmission type number is clearly 902/0 (The tranny # 162014). All documentation that I’ve read indicates that the ‘0’ corresponds to a four-speed transmission. Isn't that right?

Is it possible to convert a 902/0 into a 5 speed? Why would someone want to do that? I mean, what would be the advantage of changing out the inner components of a 4-speed versus changing the whole transmission? Also, the date stamp is 10/66 which means someone changed out the tranny on my car anyhow since by Oct. 66 they were producing the 1967 model (strange people, thos POs!).

Brandon Haller
Northern Virginia
1966 912 Coupe, Bahama Yellow