Modifying a 902/0 Transmission
 

I would like to pick your brains with a question.. perhaps stupid but "if one does not ask, one will never learn".

I have a 1966 911 with a 901 transmission which I recently busted (sheared input shaft) trying to impress the wife with how fast I could take off in my 911! as far I can tell She is still laughing!! :)

I my search for a replacement 901 . I have got my hands on a 914 5 speed transmission and a 902/0 4 speed 911 transmission.

Now here is the $1000 question..
I believe the 914 transmission core is the same as the 901 type..
( Am I wrong here? )
now.. could I take the 914 guts and transplant them to the 902/0 transmission thus making it a 5 speed transmission???

I want to hear your expert comments even if it is to call me names. !!

PS
In case some of you are wondering why I don't repair the original transmission..? well I am going to.. once a find a replacement transmission I am planning to do a complete overhaul and keep it as a spare .

Thanks

Hello

Its a big Puzzle.

You can reverse the R&P setup and just swap the fork levers and the nosecone on the 914 unit.

Intermixing parts is not the real problem. themajor problem is seting the parts to optimum messurments.

Grüsse

i would use the mainshaft and related 2nd gear out of the 914, and just fix your trans. gear ratio is everything for performance, and 914 ratios work better for the 4 cylinders. the 914 2nd gear (mainshaft) ratio was used in several early 901 trannys for 911s.

Or just use the 4 speed and then you don't have to worry about sheering 1st gear off again.

Robert

1968 911T (4 speed)

thanks for all your replies..

Grusse
your idea I had already given it a thought , to swap the transmission nosecone, to remove the side shift linkage and install the actuator and actuator forks from the 901/2 tranny..

however, The 914 intermediate case appears to be thicker that the 911 intermediate casing.. by approx 3/4 of an inch..

the next thing will be to check if it will still fit along the engine in the engine compartment.. since the overall assy. will be a bit longer.

John
would you recommend interchanging gear assemblies.. ??? I am not too keen about mixing gear assemblies since they are already run and the wear patterns will be different..

Robert
I have never driven a 911 with a 4 speed..
I have a 1964 beetle with a 4 speed and it feels funny, then again it is only a four cylinder..

what is the feeling on a 911?