Author Topic: 69 speedo hole in firewall size?? (Muncie 4 speed) (Read 4365 times)

DT · « **on:** December 23, 2012, 09:26:05 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??

bertfam · « **Reply #1 on:** December 23, 2012, 09:30:25 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

DT · « **Reply #2 on:** December 23, 2012, 09:36:12 PM »

Thank you very much Ed!!

DT · « **Reply #3 on:** December 30, 2012, 01:18:12 AM »

I'm wondering if I could get away with a 7/8's inch hole?? Anyone??

bertfam · « **Reply #4 on:** December 30, 2012, 02:00:08 AM »

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

Ed

DT · « **Reply #5 on:** December 30, 2012, 01:51:35 PM »

OK, thanks once again Ed!!

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