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Thread: Rear brake pads for 1967 911S

  1. 09-12-2023, 12:26 PM #1
    1QuickS
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    Rear brake pads for 1967 911S

    I am changing brake pads on my 67S and wanting Porterfield R4S compound. The Porterfield site lists pads for the "M" rear caliper but I think I need "L" caliper pads.

    Is there a cross-over application for another car that Porterfield may offer that fits the "L" rear caliper on my car?

    I found out what I needed to know so topic is closed for me.
    Last edited by 1QuickS; 09-12-2023 at 02:32 PM.
    Paul Abbott
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  2. 09-13-2023, 03:57 AM #2
    72targa
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    For reference, what did you find out?
    Peter Kane

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  3. 09-13-2023, 07:47 AM #3
    1QuickS
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    The Porterfield site was a little confusing but I finally achieved clarity.

    My car has early alloy front brakes so there is that.

    I measured my rear pads to be sure the dimensions matched those on the Porterfield site and I was comfortable with the application info for the front pads.

    So, for my 67S with alloy front calipers I purchased Porterfield R4S compound with AP-45T for the front and AP-30 for the rear. Now, I get to re-proportion my brake balance. Stock 67911S would normally use AP-31 for the front pads, I think.

    These pads will replace the Ferodo "M" pads which are ancient and rather cold natured.
    Paul Abbott
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  4. 09-14-2023, 02:03 AM #4
    72targa
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    ^^^^ good info
    Peter Kane

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