#21  
Old 04-24-2023, 08:15 PM
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unruhjonny unruhjonny is offline
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iirc the four speed supplier change had nothing to do with model, but everything to do with model year;
I am pretty confident that a 1973 Grand Am with a four speed would have a muncie.
If it was a late 1974 car, then it would likely have a BW ST-10.
If it was a 350-2bbl, it would probably be a saginaw.

It’s a Pontiac, so it should have a (factory) hurst shifter.
That’s probably an i credibly rare shifter arm - as it would be 1973-75(?) Pontiac specific;
Likely shared between Grand Am’s, (1973) GTO’s, and Lemans’.

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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)
  #22  
Old 04-24-2023, 10:44 PM
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big matt big matt is offline
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It would makes sense i suppose as the trans code on the phs is m20. I am unsure if that is a hurst shifter. Will know this weekend when i pick the car up. I bet it is an rare one. Every 4 speed grand am i have ever seen has a center console and probably a different stick. Now if i cam find a factory ram air hood pan and air cleaner. ��

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1970 Formula 400 4 speed
2006 Gto. Ls2/m6
1972 Gto 455ho/th400 post coupe
1973 Grand Am 400 4 speed
  #23  
Old 04-24-2023, 10:51 PM
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unruhjonny unruhjonny is offline
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except M20 is actually an RPO code.

That RPO code has in essence been used to describe a version of the Muncie four speed.

I used to know the “SM—-“ code that GM used to designate the Muncie four speed, except I can’t recall it now.

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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)
  #24  
Old 04-24-2023, 10:57 PM
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big matt big matt is offline
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Yep. I am picking up what you are laying down. Thank you for your input. Btw, how is that formula been treating you? Still have the red one? You had a 73 silver formula 350 as well no? Still have it? Those are great cars as well. I still have my 4 speed 70 formy as well. Its sees only 5-600 miles a year. It still has its share of loose ends to tidy. I continue to button a few things up every year.

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1970 Formula 400 4 speed
2006 Gto. Ls2/m6
1972 Gto 455ho/th400 post coupe
1973 Grand Am 400 4 speed
  #25  
Old 04-24-2023, 11:44 PM
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The 73 was a car I found for my brother, and owned it for a spell - but he expressed i terest in getting it back, so it’s his again.

My 70 was always rusty;
It’s undergoing an excruciatingly slow repair.

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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)
  #26  
Old 04-25-2023, 05:13 PM
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Slow and steady. Hopefully you can still drive it from time to time, to help you keep motivated. These cars, or any hobby car is a labor of love for sure. Thanks

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1970 Formula 400 4 speed
2006 Gto. Ls2/m6
1972 Gto 455ho/th400 post coupe
1973 Grand Am 400 4 speed
  #27  
Old 04-29-2023, 08:38 PM
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Got it home today. Was just as i expected. Untouched, all original, and drives quite decently. Clutch is tired. Shifter needs a rebuild, and drivers power seat is all the way forward and i am 6'5" tall. Oh well. The ac still works and the frame and body is cleaner than 90% of the original 50 year old cars i have seen. The 400 is quieter than any other i have ever heard. You almost cant hear it idling. . Seller was a great guy to deal with. Let the fun begin.

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1970 Formula 400 4 speed
2006 Gto. Ls2/m6
1972 Gto 455ho/th400 post coupe
1973 Grand Am 400 4 speed
The Following User Says Thank You to big matt For This Useful Post:
  #28  
Old 04-29-2023, 08:54 PM
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unruhjonny unruhjonny is offline
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Quote:
Originally Posted by big matt View Post
Slow and steady. Hopefully you can still drive it from time to time, to help you keep motivated. These cars, or any hobby car is a labor of love for sure. Thanks
thatís going to be a little tough.

lol.

I have two little kids now, but on the upside, they are getting at the age where I can start spending more time in the garage!!
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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)
  #29  
Old 04-29-2023, 08:59 PM
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big matt big matt is offline
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Wow. Your on a rotisserie. When you get that level of work, the mental and financial focus must be on point. Good luck, bur you've had that car for a long time. You'll pull through. Just takes time. Enjoy the kids while tou can, they are worth more than the car.

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1970 Formula 400 4 speed
2006 Gto. Ls2/m6
1972 Gto 455ho/th400 post coupe
1973 Grand Am 400 4 speed
  #30  
Old 04-29-2023, 09:42 PM
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unruhjonny unruhjonny is offline
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The car will come;
I have been going dow rabbit trails of finding as correct parts ect as possible.

Thanks for your kind words

__________________
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)
  #31  
Old 05-01-2023, 09:29 PM
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keith k keith k is offline
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Quote:
Originally Posted by big matt View Post
Got it home today. Was just as i expected. Untouched, all original, and drives quite decently. Clutch is tired. Shifter needs a rebuild, and drivers power seat is all the way forward and i am 6'5" tall. Oh well. The ac still works and the frame and body is cleaner than 90% of the original 50 year old cars i have seen. The 400 is quieter than any other i have ever heard. You almost cant hear it idling. . Seller was a great guy to deal with. Let the fun begin.
Good to hear - looking forward to the progress reports!

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70 Trans Am RA III / T400 / Lucerne Blue / Bright Blue
70 Trans Am RA III / M20 / Lucerne Blue / Sandalwood
70 Formula RA III / M21 / Lucerne Blue / Bright Blue
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