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Good Afternoon,

I pulled the ZF in my 72 pre-L over the weekend to work on a clutch pressure issue.  I only have 4K miles on the McLeod setup that I purchased from PI.  All in all, it looked good but thought I would order a new throw-out bearing and clutch while I had it apart.

It appears they made a change to the clutch since I bought the last one 2 years ago.  I did order the clutch direct from Summit this time, but it is the same part number as the original one I bought from PI.

11" dual friction

McLeod Racing 260531 McLeod 500 Series Clutch Discs | Summit Racing

Anyone had experience with this new version?  I'm wondering if I should leave the old clutch installed or give the new one a go.  The ZF isn't that difficult to remove and install but don't want to do again if I don't have to.

New clutch on top and old one on the bottom.

Thanks,

John

#3590

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Interesting response from McLeod.   It appears that I had a 100 series disc in the original kit I purchased, though the box said it was a 500 series.  The new clutch is a 500 series so I'm excited to see what the differences are.

The old disc is what we call a 100 series disc.  Link - https://www.mcleodracing.com/100-series-disc/p119

The new disc is a different disc, its listed under the 500 series.   Link - https://www.mcleodracing.com/500-series-disc/p121

You had mentioned that the original disc said 260531 on the label. Yet you received a 260131 disc which is actually a 100 series disc.

Now you purchase the same part number and actually get a 500 series disc as its supposed to be.

Thanks,
John

Marlin,

Thank you for your opinion.  I appreciate it!

I'm definitely not looking to drag race this car.   It has seen a couple of track days and will be on the street 99.9% of the time.

What do you think about the specs on the 100 series clutch disc?  I assume it is a more traditional clutch like you are describing?

I didn't have any clutch slippage issues before I removed it.

The HP on this engine is around 450HP.

Thanks!

John

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