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PY Online Forums - Bringing the Pontiac Hobby Together > BUY, SELL, TRADE Classic PONTIAC "PARTS" > Performance Parts For Sale/Wanted > Stock TH400 Governor 1969 Era Transmission
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  #1  
Old 12-23-2020, 02:31 AM
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GOAT8U2 GOAT8U2 is offline
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Default Stock TH400 Governor 1969 Era Transmission
Hi, just in need of a TH400 stock unmodified governor. If you're not sure on the history of your part, don't reply please as I constantly get burned on this stuff.

I got screwed by a tran's shop here in IL called Atomic that took my stock one for a crap ass modified one and they never fixed their pile after many attempts to get back in.

Thanks

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69 GTO Convertible, 4000lbs
462ci, 606tq/569hp - 93 oct at 34 deg (207psi)
11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump
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  #2  
Old 12-23-2020, 01:51 PM
694.1 694.1 is offline
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You might be aware that a "stock" governor can have a dozen variations of spring tension and weights depending on gear ratio and desired shift points?
You could need an expert and at least a 1/2 dozen tweaks depending on your goals.
Fortunately, it ain't rocket surgery

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  #3  
Old 12-25-2020, 12:31 PM
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Any ideaif the inkstamp was "13"

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  #4  
Old 12-25-2020, 06:30 PM
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Trans Pro His first Make is Mike 708 895 0003

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  #5  
Old 12-26-2020, 10:40 AM
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Call Trans Pro. Mike will help you out.

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  #6  
Old 01-04-2021, 07:09 PM
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Sorry I don't know the stamping, really sucks, they didn't give me it back and I didn't ask for it, so dumb on my end but I didn't think they'd bail on me.

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69 GTO Convertible, 4000lbs
462ci, 606tq/569hp - 93 oct at 34 deg (207psi)
11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump
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  #7  
Old 01-07-2021, 01:20 AM
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I called Mike at Trans Pro in Lansing IL, wow great guy and really took the time to talk to me.

He had a #14 stamped governor from a 1968 GTO Th400.

Any info on what the governors offered shifting stock?

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69 GTO Convertible, 4000lbs
462ci, 606tq/569hp - 93 oct at 34 deg (207psi)
11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump
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  #8  
Old 01-12-2021, 05:49 PM
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i would have guessed 17 or 19

13 was typical for big car and some STD GTO

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  #9  
Old 01-12-2021, 06:01 PM
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Any info or link on what the gov numbers mean?

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69 GTO Convertible, 4000lbs
462ci, 606tq/569hp - 93 oct at 34 deg (207psi)
11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump
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  #10  
Old 01-12-2021, 08:34 PM
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Represent Calibrations ( inner weights and springs. )

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  #11  
Old 01-13-2021, 12:29 AM
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Thanks

So an ink stamped 17 would be higher in rpm shifting than a 14?

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69 GTO Convertible, 4000lbs
462ci, 606tq/569hp - 93 oct at 34 deg (207psi)
11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump
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