Types of front rotors, Didn't know there were 2 different for the same year... |
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Types of front rotors, Didn't know there were 2 different for the same year... |
housepumpinpc |
Dec 16 2018, 11:16 AM
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#1
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Give me time... I'll fix it eventually. Group: Members Posts: 31 Joined: 9-May 14 From: Chicago,Illinois Member No.: 17,323 Region Association: Upper MidWest |
Hi there all you experts. I would like to know the difference in hat size of the 1972 914/4 rotors. Before my car was mine, it belonged to a former(retired) co worker. He wanted me to restore his brakes, front and rear. He bought the parts and the first set wouldn't fit on the spindle(deep hat), the second set, the caliper wouldn't bolt up. So he ended up getting the rotor resurfaced. Are there 3 types of rotors for the 914/4 and if there are, what differentiates the rotors and what are the dimensions of said rotors. Asking for a friend...
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euro911 |
Dec 16 2018, 01:03 PM
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#2
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,849 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California |
IIRC, early ('70 ~ '72) brake systems are different than late ('73 ~ '76). They changed the calipers to dual bleeders and rotors became hub-centric instead of lug-centric. It's possible your friend purchased late rotors or someone changed to late struts or even later 911 struts which took 3.5" bolt spacing calipers (IMG:style_emoticons/default/confused24.gif)
I was going to change to late calipers and rotors on my '71, but ultimately decided to stick with the original spec components to avoid any misunderstanding when ordering replacement parts. |
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