 4-lug wheel centerbore? |
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| TheMirror |
 May 20 2009, 08:24 PM
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#1
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Newbie  Group: Members Posts: 16 Joined: 22-January 09 From: NorCal Member No.: 9,962 Region Association: None  |
Cheers all, just looking to confirm that the centerbore for all 70-76 4-lug hubs is 78.6 mm.....or was there a change somewhere along the line?
Thanks, -Mirror |
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| SLITS |
May 20 2009, 08:50 PM
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
It's a matter of Hub-centric (late cars) vs Lug-centric (early cars). The actual hole in the wheel is the same for all factory alloys, but the later cars had a relief cast into the back side to fit over the hub-centric rotor design,
that's my take and I'm sticking to it. |
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| TheMirror |
May 21 2009, 12:40 AM
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#3
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Newbie Group: Members Posts: 16 Joined: 22-January 09 From: NorCal Member No.: 9,962 Region Association: None |
QUOTE(SLITS @ May 20 2009, 07:50 PM)  It's a matter of Hub-centric (late cars) vs Lug-centric (early cars). The actual hole in the wheel is the same for all factory alloys, but the later cars had a relief cast into the back side to fit over the hub-centric rotor design, that's my take and I'm sticking to it. Superb, that's exactly the info I need to know. Any idea when the rotor design changed? Was it late '72, or '73? Thanks, -Mirror |
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