3800 II oil pan bolt thread? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-18-2006, 10:37 PM   #1
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Default 3800 II oil pan bolt thread?

Anybody know if the oil pan bolts are metric or SAE, and if so, what thread?

thanks.
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Old 05-19-2006, 09:05 AM   #2
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Our cars are all metric.

Not sure on the size..but I'd guess a 1.25 or 1.50 pitch on probably a 6 botl.
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Old 05-19-2006, 09:12 AM   #3
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M8
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Old 05-19-2006, 01:33 PM   #4
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Ok...thanks Game

M8 at 1.25 pitch...would be the expected.
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Old 05-19-2006, 08:03 PM   #5
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Quote:
Originally Posted by BillBoost37
Ok...thanks Game

M8 at 1.25 pitch...would be the expected.
But it'* not. Just pulled a single bolt. 6.0 x 1.0 pitch.

strangest part? Bolt has a 3/8" SAE head. How weird is that?
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Old 05-19-2006, 10:27 PM   #6
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Quote:
Originally Posted by Bob Dillon
Quote:
Originally Posted by BillBoost37
Ok...thanks Game

M8 at 1.25 pitch...would be the expected.
But it'* not. Just pulled a single bolt. 6.0 x 1.0 pitch.

strangest part? Bolt has a 3/8" SAE head. How weird is that?
wow M6 that unheard of for oil pan bolts
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Old 05-19-2006, 11:13 PM   #7
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Quote:
Originally Posted by Bob Dillon
But it'* not. Just pulled a single bolt. 6.0 x 1.0 pitch.

strangest part? Bolt has a 3/8" SAE head. How weird is that?

6mm x 1.0 is really close to a 1/4" x 28

.250 vs .236 dia
.0357 vs .0394 pitch
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