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Join Date: May 2010
Location: Boise, Idaho, that happenin' town
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Frankencable? Clutch cable for 1976 911s.

I have a 1976 911s with transmission(?) 621-0266 . The clutch cable finally snapped. It has the lever arm (shown below) with the cable coming off at a 90 degree angle. The pedal end is 6mm, but the lever end is 7mm threaded. It's not a turbo. I don't know which replacement cable I need... was the 7mm hole bored-out from 6mm? The shop manual is a bit baffling.

911-423-401-00-M74 = Clutch Cable (6mm / 7mm ends), 911 (1974)
930-423-401-07-M74 = Clutch Cable (6mm / 7mm ends), 911 Turbo (1976-77)
911-423-401-03-M74 = Clutch Cable (6mm / 6mm ends), 911 (early 1975) (Might work?)

If anyone knows the specs on the cables, or where to find the gemo catalog lookup, that would be greatly appreciated.


Last edited by Yozen; 05-28-2010 at 01:46 PM.. Reason: (Wrong eng. no.)
Old 05-28-2010, 01:34 PM
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It looks like you have a 75 pivot arm, as 75 was the only year they used one with the 90 degree bend in it like that, they changed it in 76. You could have a very early 76 or someone swapped it out. There is an upgraded pivot arm, Pelican dosnt list the new style, but Performance Auto has it, around 110 bucks.
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Old 05-28-2010, 03:15 PM
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That arm was also on 76 915 transmissions. I've been through the same clutch cable issues. Sadly, I do not have a part number for you. My solution was to take the old cable (pieces) to a local parts distributor.
Old 05-28-2010, 06:14 PM
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I would get rid of that arm unless you still have the stock exhaust.

There is a thread with my name on it somewhere here where a guy eventually figured out why they used that bent arm. I forget who posted the answer but it was to clear the exhaust. If that problem no longer exists then revert to the 1974? arm & cable
Old 05-29-2010, 11:50 AM
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Performance products has it part#915801 $139.95 same arm as72 to 74 model years website **********.com
Old 05-29-2010, 01:57 PM
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look for a used one
Old 05-29-2010, 05:24 PM
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Thanks everyone. I had been driving it for a while and it was getting hard to shift into 2nd... so I got underneath and tightened the locknut on the lever maybe 1mm. Started it up, played with it in the garage, no grinding. Put my foot down on the clutch again, backed it up about a foot and BANG!! It sounded like a gun shot, and the clutch pedal slammed to the floor.
Ecstatic that it happened in my garage and not in traffic.
I'll poke around for a new (used) lever arm.
Old 05-29-2010, 07:28 PM
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I have the same issue on my 76. I used a 76 clutch cable, modified the arm and fabbed some little "do-dad" for the nut to jam against, it's been a while so sorry for the ambiguity, and now my cable is a straight pull. I have seen the back dated arms and will switch to that set up when it becomes necessary or convienant.

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Old 05-30-2010, 01:04 AM
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