Fitting size...oil pressure line from case
 

Did Porsche change the fitting size when they went from the early rubber line to the steel line under the trannie? TIA

Yes , the oil line is larger for '72 MY and newer cars , and the fitting is larger .

:)

Early 911 Oil Lines from model years 66 to 70 were 26mm.

The 70 - 71 models had a mix of 26 & 30mm.

72 on had just 30mm. The threads in the case for all models are M22 x 1.5.

I have just about any 26 or 30mm steel fitting you may need, along with the correct 26 & 30mm Oil Hose.

I do not have the Aluminum Argus fittings used on the very early models.

len.cummings @ verizon.net

:)