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WHen did it change from 5.0(130) to 4.75 (120)
was it around 1966?
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Not sure what you mean.
Note that 4.75" isn't 120mm either. It's 120.65mm. This is the reason why you can't put HQ wheels (4.75") on Commodore (120mm) and vice versa.
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Not sure what you mean.
Note that 4.75" isnt 120mm either. Its 120.65mm. This is the reason why you cant put HQ wheels (4.75") on Commodore (120mm) and vice versa.
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the Early US built GM have a larger PCD, around 130 or 5.0 when from and until, i am unsure. what did the C20 / C30 run up front??? I apologise for not inc decimal point of HQ size. I guess Technically, 120.65 should be rounded up to 121. He who h Edited by user Tuesday, 22 April 2008 3:35:52 AM(UTC)
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Hi Guys.
Chev have had the 4.75" (120.65mm) PCD pattern since before 1953, not sure how much before that.
However, Buick Oldsmobile, Cadillac & some Pontaic models used 5.00" (127mm) PCD well after that (at least into the late 1970s).
Dr Terry
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thanks terry. Do you know about the C20 / C30? He who hesitates, -Masturbates. Edited by user Tuesday, 22 April 2008 3:59:06 AM(UTC)
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From memory the C30 is an 8 stud. My Overlander had a Dana60 rear diff which had a 6 stud pattern the same as a Landcruiser/Patrol but the Chevs with the same diffs were 8 stud. Although I think some of the C20 and K20 Chevs had 6 stud 5.5" like Landcruis |
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