Powerglide question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jcdeuce · 06-30-2008, 09:14 PM

My 68 shifts at about 25 even if I get on it is this normal with a stock powerglide? this is the first truck I have had with the 2 speed so not sure, plus not a tranny guy either.

my70chevyc10 · 06-30-2008, 11:23 PM

On the trans there is a little arm between the trans housing and the shift arm that needs a kickdown rod from the carb to that arm. When you floor the gass the little arm is pushed down by the rod conected to the carb an keeps the trans from shifting till later in the RPM band. The V8 powerglide has cooler lines that go to the trans cooler or radiator and the stright 6 powerglide has no lines just 2 holes in the bellhousing of the trans to let the air cool it.

Brad · 07-01-2008, 12:10 AM

Quote:

Originally Posted by my70chevyc10

...The V8 powerglide has cooler lines that go to the trans cooler or radiator and the stright 6 powerglide has no lines just 2 holes in the bellhousing of the trans to let the air cool it.

My L6 Camaro PG has cooler lines running to the radiator, FWIW.

jcdeuce · 07-01-2008, 01:43 PM

Thanks, I will have a look for that kick down linkage when i get to the house this evening.

The Big Green · 07-01-2008, 03:48 PM

I just wanted to pop in and say I love a good powerglide. I have one in a 91 S-10 but its far from stock and is a full manual shift so I can't really help you but I love shifting 1 time and be done with it. They are a good racing tranny, never tried one on the street. I have to agree with tinkering with the side of the tranny, you can adjust things and get higher or lower rpm shifts that way.

Wrenchbender Ret · 07-01-2008, 03:53 PM

Also check the vacuum modulator. It should have vacuum at the hose going to it when the engine is running. If there is any fluid in the vacuum hose the modulator is bad.

Brad · 07-04-2008, 02:27 AM

Quote:

Originally Posted by The Big Green

I just wanted to pop in and say I love a good powerglide. I have one in a 91 S-10 but its far from stock and is a full manual shift so I can't really help you but I love shifting 1 time and be done with it. They are a good racing tranny, never tried one on the street. I have to agree with tinkering with the side of the tranny, you can adjust things and get higher or lower rpm shifts that way.

That's exactly what I've got in my Camaro. It's like a built in 'shift kit' and back when the engine was younger I could beat F*#d 289's.

ChevLoRay · 07-04-2008, 09:16 AM

When Chevy came out with the TurboGlide in '58, we were excited that we'd have something better than a PG. After all FoMoco had 3-speed automatics, and GM didn't. There were the Hydramatics that graced Olds, Pontiac and Cadillac, but those were much bigger transmissions. We Chevy fans didn't get a 3-speed automatic until the TurboHydramatic came out.

So, in retrospect, the aluminum case powerglide has an established presence in the racing world, as cited above.

The cast-iron PG......on the other hand.......oh, the TurboGlide? Died in '61. Nobody missed it, either. I mean, just what is "Grade Retard" doing for a gear selection? I know what it meat, but it got called "GRunt" gear.

Didn't we call them "Power Slides" at one time? It was better than a DynaFlow.

06-30-2008, 09:14 PM	#1
jcdeuce Confused but Happy Join Date: Apr 2008 Location: Lake Jackson, TX Posts: 27	Powerglide question My 68 shifts at about 25 even if I get on it is this normal with a stock powerglide? this is the first truck I have had with the 2 speed so not sure, plus not a tranny guy either.

06-30-2008, 11:23 PM	#2
my70chevyc10 Registered User Join Date: Jul 2007 Location: Covina Calif Posts: 172	Re: Powerglide question On the trans there is a little arm between the trans housing and the shift arm that needs a kickdown rod from the carb to that arm. When you floor the gass the little arm is pushed down by the rod conected to the carb an keeps the trans from shifting till later in the RPM band. The V8 powerglide has cooler lines that go to the trans cooler or radiator and the stright 6 powerglide has no lines just 2 holes in the bellhousing of the trans to let the air cool it. __________________ "Your trucks fast! You must have been going 120 when I passed you." "Owning A 10 Sec Import Is Like Coming Out Of The Closet, In The End Ur Still Gay" If for some reason i loose to a import...At least i can go home knowing the vehicle i drive drops girls panties...

07-01-2008, 01:43 PM	#4
jcdeuce Confused but Happy Join Date: Apr 2008 Location: Lake Jackson, TX Posts: 27	Re: Powerglide question Thanks, I will have a look for that kick down linkage when i get to the house this evening.

07-01-2008, 03:48 PM	#5
The Big Green Registered User Join Date: Oct 2007 Location: Fort Smith,AR Posts: 1,305	Re: Powerglide question I just wanted to pop in and say I love a good powerglide. I have one in a 91 S-10 but its far from stock and is a full manual shift so I can't really help you but I love shifting 1 time and be done with it. They are a good racing tranny, never tried one on the street. I have to agree with tinkering with the side of the tranny, you can adjust things and get higher or lower rpm shifts that way.

07-01-2008, 03:53 PM	#6
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,206	Re: Powerglide question Also check the vacuum modulator. It should have vacuum at the hose going to it when the engine is running. If there is any fluid in the vacuum hose the modulator is bad. Last edited by Wrenchbender Ret; 07-04-2008 at 09:14 AM.

07-04-2008, 09:16 AM	#8
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: Powerglide question When Chevy came out with the TurboGlide in '58, we were excited that we'd have something better than a PG. After all FoMoco had 3-speed automatics, and GM didn't. There were the Hydramatics that graced Olds, Pontiac and Cadillac, but those were much bigger transmissions. We Chevy fans didn't get a 3-speed automatic until the TurboHydramatic came out. So, in retrospect, the aluminum case powerglide has an established presence in the racing world, as cited above. The cast-iron PG......on the other hand.......oh, the TurboGlide? Died in '61. Nobody missed it, either. I mean, just what is "Grade Retard" doing for a gear selection? I know what it meat, but it got called "GRunt" gear. Didn't we call them "Power Slides" at one time? It was better than a DynaFlow. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. Last edited by ChevLoRay; 07-04-2008 at 09:18 AM.



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