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Old 02-19-2004, 01:13 AM
DaJudge DaJudge is offline
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Default Re: 70 GTO question

Bob,
I just measured the original one off my Judge, it is 13 1/4 in diameter.
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Old 02-19-2004, 02:04 AM
Belair62 Belair62 is offline
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Default Re: 70 GTO question

What the heck would I do without you Mike ?! You have answered every single question I have come up with...looks like I got the wrong one...FYI...the RA system is up and running now...column is together and that damn key buzzer works properly now...on to the gas gage and dome light now !among 200 other things.
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Old 02-19-2004, 03:43 PM
Keith Tedford Keith Tedford is offline
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Default Re: 70 GTO question

Get yourself a GM service manual for the GTO. It has the electrical schematics for the whole car. I just sorted out a birdsnest butcher job in our '69 el Camino and the manual was excellent. We have the manual for our '72 Lemans Sport and it is even better than the Chevy manual for details. Even the wheel codes were listed. I picked up these books at swap meets. Most GM literature vendors seem to have copies.
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Old 02-19-2004, 04:39 PM
Belair62 Belair62 is offline
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Default Re: 70 GTO question

Got them Keith....I hate wiring schematics !!!
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Old 02-20-2004, 12:42 AM
Belair62 Belair62 is offline
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Default Re: 70 GTO question

OK...saw something in the 70 GTO assembly manual that surprised me...a vacuum operated muffler system ! What the...did this actually get produced ? it opened the baffles in the muffler to reduce backpressure..vacuum diaphrams on each muffler !! Strange set-up.
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Old 02-20-2004, 01:46 AM
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MrsBillyBobcat MrsBillyBobcat is offline
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Default Re: 70 GTO question

Bob,

Only a few early '70 GTO's were fitted with "Vacuum Operated Exhaust" (VOE), before GM put the "kabash" to it. The system used a "tiger button", which resembled a RAM AIR pull knob. When pulled, vacuum went to a solenoid which moved a baffle inside the muffler. The baffle directed exhaust through a lower restriction area of the muffler, which also enhanced the sound. To see the neat application for real, click the link below to watch the 1970 GTO commercial titled "The Humbler", which was also pulled by GM. The VOE and the commercial were too suggestive of racing, so GM dropped them.

The Humbler

Rita
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Old 02-20-2004, 02:10 AM
Belair62 Belair62 is offline
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Default Re: 70 GTO question

Now that would be cool to find NOS huh !!!
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Old 02-24-2004, 09:11 PM
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Default Re: 70 GTO question

[ QUOTE ]
Bob,

Only a few early '70 GTO's were fitted with "Vacuum Operated Exhaust" (VOE), before GM put the "kabash" to it. The system used a "tiger button", which resembled a RAM AIR pull knob. When pulled, vacuum went to a solenoid which moved a baffle inside the muffler. The baffle directed exhaust through a lower restriction area of the muffler, which also enhanced the sound. To see the neat application for real, click the link below to watch the 1970 GTO commercial titled "The Humbler", which was also pulled by GM. The VOE and the commercial were too suggestive of racing, so GM dropped them.

The Humbler

Rita

[/ QUOTE ]

Very, VERY cool, thanks for the link!

Man that thing sounded sweet!

Eric
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