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Old 08-16-2010, 10:22 AM
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Powerglide question

Hey. I am getting ready to mount my newley rebuilt engine in my 68 Elcamino. I purchased a rebuilt powerglide some years back and am hoping to attach it to my sbc. when getting ready to bolt it up, I noticed 2 things that were different. 1. the tranny was built for a hot rod , and as a result, it only has 1 bracket for shifter cable-no kickdown. evidently there was something done differently with the valving internally as the internal shaft does not even exist, Is this an issue? is a kickdown really needed. I know very little about how this was modified, but I am pretty sure it was made up for a aftermarket shifter setup. I was able to fabricate a bracket for the standard horseshoe to work properly with engaging each gear. 2. There is what appears to be a third hose connection right above the cooler lines that was not on the powerglide I removed. Any thoughts on what this might be? Thank you for any thoughts you may have on this dilema. - Joe

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Old 08-16-2010, 10:57 AM
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Before you set up the shifter, you need to know if the valve body is reversed and/or manual. It would be likely that it is at least manual. Any chance it has a transbrake?

There are circle track PG trannys set up to run w/o a torque converter, or w/a "clutch" (either pedal or hand operated valve).

IIRC, there is a breather just above the cooler fittings.
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Old 08-16-2010, 12:27 PM
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Thanks

Thanks for the insight. The linkage was in fact reversed. I was able to fabricate a bracket that engaged each gear properly with the horseshoe shifter with all the detents in tact. My concern was more the kickdown. I unfortunately bought it from a guy who picked it up from a person doing a duece coupe , then changed his mind on the tranny choice. All he knew was that the guy always has the top of the line work done on all his projects. I am guessing it probably does have a trans brake. Is that perhaps why there is a third hose nipple? would I be better off just putting in the tired old powerglide I pulled out since I am not sure what I have?Thanks again!
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Old 08-16-2010, 01:04 PM
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I think I'd want to find out what I had before using the old one, unless you just would like to get up and running. If it had a brake there should be wiring for the solenoid.

The fitting could be for a breather. If not, I don't know!

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Old 08-16-2010, 01:33 PM
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If it has a transbrake there will be an electric solenoid in place of the vacuum modulator.
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Old 08-16-2010, 03:15 PM
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The picture helped. That is exactly where I was talking about. He evidently has it set up for a hose to run to a remote breather. It appears that it does not in fact have a trans brake. I am assuming since there is no kickdown linkage and still a modulator, I should be okay running without the kickdown and it should still shift automatically in drive. I guess I'll give it a try and hold off on selling the other tranny. Thanks for the input. This site has been awesome for a first time restorer!
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Old 08-16-2010, 04:46 PM
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With a manual valvebody it won't shift normal in drive, it will start out in high gear. With a manual valvebody you the driver will have to do all the shifting, up or down from low to high.
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Old 08-16-2010, 04:51 PM
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Quote:
Originally Posted by camino350
The picture helped. That is exactly where I was talking about. He evidently has it set up for a hose to run to a remote breather. It appears that it does not in fact have a trans brake. I am assuming since there is no kickdown linkage and still a modulator, I should be okay running without the kickdown and it should still shift automatically in drive. I guess I'll give it a try and hold off on selling the other tranny. Thanks for the input. This site has been awesome for a first time restorer!
It still remains to be seen as to what type valve body you actually have. I would tend to think it was a manual valve body (you already know it has a reverse pattern). May be full manual or it may still retain automatic shifting. With no kick down the linkage may just need to be reattached or it's not used.

Sometimes running a manual VB will mean no engine braking when you let off the throttle- the engine freewheels below the speed of the vehicle, if you follow me. Or it may have engine braking, it depends on whose VB it is and how it was designed.

You need to be at a complete stop before shifting from forward to reverse and vise versa. The shifts can be abrupt if the engine RPM is up some, so be aware of this especially in the wet- it'll break traction easily.
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Old 08-16-2010, 04:55 PM
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If it is reverse pattern, it is definately full manual and will not shift on its own, nobody makes a reverse pattern auto shift valvebody.

I like and prefer the manual shift myself
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Old 08-16-2010, 05:53 PM
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Great!

Thanks again - If it is in fact a manual VB, then I guess the kickdown is pointless. The help was very reassuring. Now I am just need to find out the stall on the converter, but I guess that will have to wait until I get it in to figure that one out.
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