67-69 Firebird TECH Includes 69 TA.

          
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  #5761  
Old 09-25-2025, 09:31 PM
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The speedo adaptor was an external gear reducer that screwed in between the speedo cable and the transmission. It was only used on turbo hydramatic transmissions when a 3.90 or 4.33 axle was selected. This was because the th400 didn’t have the right combination of drive and driven speedometer gears for those ratios. The alternative was to have a different speedo drive gear on the output shaft. This would have required a different transmission application. It was cheaper to just have an external screw on device that corrected the cable speed, especially for the very low volume of cars needing it. The manual transmissions used different gears and didn’t have that ratio limitation.

To think that that 1946 is less than 20 years separated from the muscle car era. It’s amazing how much cars changed in a decade back then.

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1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
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1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
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  #5762  
Old 09-25-2025, 09:31 PM
Baron Von Zeppelin Baron Von Zeppelin is offline
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The speedo adapter gizmo was required with Automatic if you had 3.90 gear or 4.33 gear.
I guess the needed amount of teeth for the plastic speedo gear wouldn't mesh with the pinion type drive gear on the transmission output shaft.
Instead of retooling special output shafts for the cause , they used a gear reduction adapter.
And charged extra for it ...

This isn't the actual unit , but a very similar unit .
Stewart Warner made them.



Last edited by Baron Von Zeppelin; 09-25-2025 at 09:38 PM.
  #5763  
Old 09-26-2025, 02:07 AM
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Quote:
Originally Posted by north View Post
To think that that 1946 is less than 20 years separated from the muscle car era. It’s amazing how much cars changed in a decade back then.
Consider that early post-war cars were essentially re-trimmed pre-war cars. It wasn't until the early '50's that we saw the demise of running boards, V configurations vs straight 8's, and the like.

That '46 is beautiful, and indeed 3 on the tree (automatic was introduced in '48; prior post-war cars were all 3 on the tree, AFAIK).

The price is surely reasonable, and the car is actually within driving distance for me here on the Island (20-30 minutes east of me). If I could squeeze the time, I'd love to go out and have a look-see, even though sedans are not really my thing. It's just such a wonderful piece of history, though...

I was hoping for that '47 Streamliner woodie, and almost seriously considered the BIN on it, but my place right now is like 5 pounds of bologna in a 2-pound bag (and my '63 is not getting evicted from her spot in the garage to make room - LOL). Still, I think it would have done better at Barrett-Jackson than on eBay (different crowd), so if I were going to buy to flip, I would have had it transported straight to Scottsdale, I think, paid some storage, and consigned for next month. (This '46 is a different story, though.)

Great info on the speedo adapter as well as the VOE setup in that Goat, guys; thanks for that. I love hanging out with people who know neat stuff. 😉

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  #5764  
Old 09-26-2025, 07:19 PM
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77 Can Am with 67K miles at $32K in Texas. A very fair asking price IMO. No engine pics.

https://www.ebay.com/itm/28684268429...Bk9SR6ie-YSxZg


  #5765  
Old 09-26-2025, 07:52 PM
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66 GTO tribute (Lemans) in NY at $500 NR. Beautiful paint job.

https://www.ebay.com/itm/38901438058...Bk9SR_7S4oaxZg


  #5766  
Old 09-26-2025, 08:28 PM
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I don’t think I’ve ever seen a bench seat CanAm before.

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My Break Away Squad
1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
1969 LeMans (2dr & 4dr ht & Cvt)
1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
1969 Grand Prix 2 SJ’s
1969 2+2 2dr ht (Canadian)
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  #5767  
Old 09-27-2025, 10:04 AM
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Here's a pretty one. 77 Trans AM Y82 W72 4-speed car with 46K miles in Nebraska with a reserve.

https://www.ebay.com/itm/32679051795...Bk9SR4Cpj7exZg


  #5768  
Old 09-27-2025, 10:15 AM
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67 4-speed GTO convertible at $29K and the reserve not met in NY. The engine has 6X heads, so not original. The blue/white cars seem to be very desirable.

https://www.ebay.com/itm/28684084314...Bk9SR4Spj7exZg


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  #5769  
Old 09-27-2025, 05:43 PM
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69 triple white Grand Prix Model J in Texas at $20K BIN.

https://www.ebay.com/itm/25712285635...Bk9SR4z66dGxZg


  #5770  
Old 09-29-2025, 04:28 AM
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67 Lemans convertible in Pennsylvania at $900 NR.

https://www.ebay.com/itm/32679372103...Bk9SR-SVmsmyZg


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  #5771  
Old 09-30-2025, 07:22 AM
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68 "rust free" GTO 4-speed in CA at $37K BIN. Nice enough car, but on the high side. The exhaust, scrape on nose, etc., need a tweak.

https://www.ebay.com/itm/27741311452...Bk9SR_yPwKWzZg


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  #5772  
Old 09-30-2025, 12:48 PM
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1975 called, they want their candy apple red paint, rake and wheel offset back from that 68 goat ;-)

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My Break Away Squad
1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
1969 LeMans (2dr & 4dr ht & Cvt)
1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
1969 Grand Prix 2 SJ’s
1969 2+2 2dr ht (Canadian)
  #5773  
Old 09-30-2025, 11:04 PM
Baron Von Zeppelin Baron Von Zeppelin is offline
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Quote:
Originally Posted by thews View Post
67 4-speed GTO convertible at $29K and the reserve not met in NY. The engine has 6X heads, so not original. The blue/white cars seem to be very desirable.
That car will bring decent coin. They have the original WT engine with it also.
Very desirable color combo , plus 4spd with AC.
Imitation 4x4 stance not adding any value.

  #5774  
Old 09-30-2025, 11:27 PM
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While running a routine search for my elusive '56 316 4bbl with auto trans for my '56 Safari, I happened across this ad for a pre-65 dual quad intake with a pair of Buick 500cfm AFBs on it:

https://www.ebay.com/itm/306505288562

Not sure if this may be of interest to anyone (I'd surely like to find a dual quad 316, however...).

(Also a few seemingly nice Offy dual quad intakes available for '59-'64 seem to be posted.)

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'56 Safari
'82 Firebird SE
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Last edited by Rachelsdad; 09-30-2025 at 11:30 PM. Reason: added mention of other intakes
  #5775  
Old 10-01-2025, 12:43 AM
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Quote:
Originally Posted by thews View Post
68 "rust free" GTO 4-speed in CA at $37K BIN. Nice enough car, but on the high side. The exhaust, scrape on nose, etc., need a tweak.

https://www.ebay.com/itm/27741311452...Bk9SR_yPwKWzZg

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  #5776  
Old 10-01-2025, 03:47 AM
thews thews is offline
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67 Firebird convertible in Pennsylvania at $100 NR. Too much rust for me, but we'll see what it brings.

https://www.ebay.com/itm/28684977181...Bk9SR5LlxOuzZg


  #5777  
Old 10-01-2025, 03:54 AM
thews thews is offline
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67 Firebird convertible in Tennessee at $121K BIN. LS3 and a 6-speed are cool, but for that much coin I'd rather have a real 69 Trans AM. Way overpriced IMO.

https://www.ebay.com/itm/16782780802...Bk9SR5TlxOuzZg


  #5778  
Old 10-01-2025, 04:01 AM
thews thews is offline
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64 Marimba Red GTO 4-speed convertible in Michigan at $29K BIN. Pics of the engine show a 4BBl and 2BBL, so not sure what's going on there. The one that started it all, I don't think the 64's are keeping pace with the 65-67's. Very reasonable asking price for a 4-speed convertible.

https://www.ebay.com/itm/22700131693...Bk9SR5blxOuzZg


  #5779  
Old 10-01-2025, 06:45 PM
thews thews is offline
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This is what a stock 64 Marimba Red GTO looks like:



64 GTO convertible with a white top:



Beautiful cars, but even tho it's rare I don't like the color. It's not that I don't like it, it's that I'd rather pick others. It's a rare color and holds charm to many, and money doesn't matter if you love it.

  #5780  
Old 10-01-2025, 08:37 PM
thews thews is offline
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67 GTO convertible project car in NJ at $13.5K.

https://www.ebay.com/itm/14686730398...Bk9SR9S2sqW0Zg


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