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  1. #1
    Lead Foot is offline Porsche Prophet
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    Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    I recently upgraded the basic steering wheel with triangular airbag in my 08 Cayman S to the 2010 manual transmission version from the generation 2 model. The new style is basically the PDK wheel without the buttons. When I was mounting the new gear, I noticed that the wheel did not quite mount as deep on the steering column spline shaft as opposed to my older wheel. There was about 2/10 of an additional extension beyond the shaft. I measured the amount of actual spline contact area which appears to be the same as before, but the mounting length depth on the new wheel is now longer.

    Did anyone else experience this issue? See the enclosed photos for the new gap between the steering wheel and column in addition to seeing how the steering shaft does not extend as far forward as it should. Perhaps the steering column shaft and the point at which it begins to flare out towards the stalks were changed starting in 2009 (part numbers are the same from 08 to 09, however).

    I am a little concerned that the wheel is not as sturdy as it should be. Thanks.
    Attached Thumbnails Attached Thumbnails Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)-wheel-gap-01.jpg   Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)-wheel-gap-02.jpg  


  2. #2
    Lead Foot is offline Porsche Prophet
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    Re: Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    Anyone? PDK steering wheel retrofit folks?

  3. #3
    k_kush's Avatar
    k_kush is offline Porsche Activist
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    Re: Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    I do not have PDK, but did retrofit a 2010 wheel on my 2006. I've had mine installed for a few months now with no problems. This is the only picture I have that shows a side view. I wouldn't worry about it as long as the wheel feels secure when bolted on.

    I assume your horn does not work or did you purchase the newer steering module had have it reprogrammed? I haven't gotten around to doing this yet so no horn for me.

    2006 Guards Red Cayman S / TPC Stage 2 Turbo / TPC and Accumoto Track Packs / Mantis Deep Sump / Mantis Underdrive Pulley / X51 LWFW and Clutch / 19" Champion RS-98 Rims / LED Spars w/ Radiator Guards / Boothe Chrome Lug Bolts / B&M Short Shifter / HIP Engine Cover / PCM 2.1 / Chrono / Sport Seats /

  4. #4
    Lead Foot is offline Porsche Prophet
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    Re: Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    Quote Originally Posted by k_kush View Post
    I do not have PDK, but did retrofit a 2010 wheel on my 2006. I've had mine installed for a few months now with no problems. This is the only picture I have that shows a side view. I wouldn't worry about it as long as the wheel feels secure when bolted on.

    I assume your horn does not work or did you purchase the newer steering module had have it reprogrammed? I haven't gotten around to doing this yet so no horn for me.
    I went by a dealership to look at the gap on the 2010s and it appears to be normal (997s and 987s). It is somewhat strange of Porsche to design the steering wheel that way when the gen1 cars were nearly flush with the column, but it is what it is.

    As for the steering column control switch, yes it turned out that I needed the part. I had hoped the '08 switch would be compatible since it's part number has not been coded as "replaced" in the PET system. As fate would have it, my '08 CS had the switch part number from the '07. In the end, the horn did not work, so an upgrade to the 2010 version was needed along with dealer programming. I still have a suspicion that the '08 switch may work with the '10 wheel/airbag. One can see the part if they look under the black steering column plastic cover.

    Switch part numbers
    2009-2010 -- 997.613.289.01
    2008 -- 997.613.297.02
    2007 -- 997.613.297.01
    2006 -- 997.613.291.02

    When the dealer is programming the switch make sure they activate the applicable items in the following list which I pulled from the service manual. A couple were missed on my car, so I had to return for a 2nd round of programming.
    Tiptronic, multi-function wheel, cruise control, headlight washers, push to talk, and rear wiper.

    All in all, this retrofit turned into more work than I envisioned, but the final product is a big improvement over my original basic triangular wheel. The new wheel is stone grey with the full leather airbag.
    Attached Thumbnails Attached Thumbnails Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)-wheel-installed.jpg  

  5. #5
    Cassius is offline Porsche Person
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    Re: Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    I am new to this group, and joined specifically for this thread. Does this mean I could install the Porsche Gen II Sports 3 Spoke Steering as well on a Gen 1 car.
    Your advice would be much appreciated.

  6. #6
    Lead Foot is offline Porsche Prophet
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    Re: Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    What specific wheel are you referring to? A picture will help, but all of them should fit with some electronic programming needed. This is the latest optional sports wheel for a manual transmission. Sport Design. Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)-black-steeringwheel.jpg

  7. #7
    Cassius is offline Porsche Person
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    Re: Steering Wheel Retrofit Mounting Depth Issue (997/987 Gen 2 to Gen 1)

    Quote Originally Posted by Lead Foot View Post
    What specific wheel are you referring to? A picture will help, but all of them should fit with some electronic programming needed. This is the latest optional sports wheel for a manual transmission. Sport Design. Click image for larger version. 

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    Yes, that is the exact steering wheel I'm referring to. I emailed Suncoasticon Parts two days ago, but haven't heard from them to confirm what parts I would need for the installation. Thanks a lot Lead Foot, you have just answered my prayers. Now I don't need to buy a Gen 2, have saved myself 20K and can afford a Cayman S, Gen 1. Wooo hoooo
    Last edited by Cassius; 07-22-2014 at 05:31 AM.

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