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Author Topic: 69 speedo hole in firewall size?? (Muncie 4 speed)  (Read 712 times)
DT
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« on: December 23, 2012, 04:26:05 PM »

Anyone know what the size of the speedometer hole is on the firewall next to the wiper motor on 69 4 speed Muncie applications??
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Donny
Ed Bertrand
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« Reply #1 on: December 23, 2012, 04:30:25 PM »

Take a look at UPC 0, sheet A9 in the AIM and you'll see that the RPO M20 hole piercing for 8A is 1"

Ed
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DT
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« Reply #2 on: December 23, 2012, 04:36:12 PM »

Thank you very much Ed!!
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Donny
DT
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« Reply #3 on: December 29, 2012, 08:18:12 PM »

I'm wondering if I could get away with a 7/8's inch hole?? Anyone??
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Donny
Ed Bertrand
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« Reply #4 on: December 29, 2012, 09:00:08 PM »

Not if you're going to install an ORIGINAL STYLE GROMMET. It's a tight fit even at one inch!

Ed
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DT
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« Reply #5 on: December 30, 2012, 08:51:35 AM »

OK, thanks once again Ed!!
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Donny
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