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#1
08-19-2014, 09:10 PM
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TH400 Kickdown Question
My 68 Firebird 400 has the original Kick down switch and bracket, however the
spacer for switch was missing. I can make another but was wondering the length or spacer. I did a search and there are several excellent pics on these forums, and when I duplicate that pic where there are almost no threads exposed after the lock nut it seems the switch will only activate when throttle is 95% or better. I only noticed this after installing new floor mats and she felt different at WOT as switch was not always being made. Where do you guys prefer to have to kick down activate. I have read anywhere from 75-100 throttle movement. This is with a 3.08 rear gear. Thanks Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds |
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#2
08-19-2014, 10:32 PM
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I measured 2 of them and got .45 on one and .51 on the other so about 1/2" is what I would make it.
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#3
08-20-2014, 07:24 AM
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measurement
1/2" it is thanks
Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds |
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#4
08-23-2014, 01:55 PM
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Gerry, Do you have a picture of the spacer installed. I've been struggling with this same issue and didn't realize I was missing a spacer. Makes sense! Thanks!
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All of my cars are Hybrids...they burn gas and rubber!  '73 Ventura, Spotts 462 roller 10.785 @ 122.79, 1.507 60 ft 2850 lbs. plus driver, 3150 race weight '69 Firebird Convertible, Spotts 455 with long branches 12.561 @ 107.62, best on old 455 4290 race weight '72 Formula 455 HO numbers matching auto, work in progress! |
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#5
08-23-2014, 02:46 PM
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spacer
when I get it made I will post a pic.
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds |
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#6
08-23-2014, 09:19 PM
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Here are a few links,
http://firstgenfirebird.org/forums/u...37761&page=all http://firstgenfirebird.org/forums/u...&Number=252186 http://www.ebay.com/itm/67-68-69-PON...-/281354577190 hope it helps. Marco |
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