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#1
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speedo adapters
I have these two adapters here;
There are not the more common (at least more common type I have seen) which are the compact rectangular ones which seems to have a built in cable(?); I am guessing that these ones require a speedo cable which is longer than the cable housing - is this correct? It's either that, or I need something else to connect the speedo cable from my car to the gear in my transmission. Can anyone confirm what I need to do to use these? I am incline to use the longer of the two at a later point, because it would allow me to run all the factory stuff for my (3.55:1 geared) car, but run a 3.90:1 gear set; At least that's how my math works out. 3.90 x 0.909 = 3.55 This one (the longer of the two) has the following stamped on one of the circular end faces: 6476884 1:0.909 005 (upside down and small "M") 2 The other one has the following stamped on BOTH of the flat circular end faces: 1565210 1:0.866 043C1 Thanks in advance for helping me out!!
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#2
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Is this what I'm missing?
This shows a "key" being used for the adapter; is there a part number, or way I can order one?
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#3
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I think you are looking at it backwards. The key should be in the adapter already right above the section with the gear. With the gear in the transmission your cable will thread on the other end that has the fine threads.
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#4
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When I take the speedo gear housing off, this is what I see:
I have suspected I have been missing something to make these function; How am I looking at this "backwards"?
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#5
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You're missing the key that goes between the driven gear housing and the adaptor in place of the cable.
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Triple Black 1971 GTO |
#6
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that's what it's now looking like to me;
Can anyone help me positively id the correct key(s) I need?
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#7
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....i have a couple of the 90* 1:1 ratio sitting nice, will never use.
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#8
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Sorry I didn’t know you had disassembled them. If you can’t find the missing keys I would think you could make them without too much trouble.
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#9
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SpeedometerCablesUSA has those keys in a bunch of different sizes.
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#10
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Thanks for the tip!
I will look them up.
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
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