New GM Hydra-Matic 6 speed RWD Planetary Manual transmission
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New GM Hydra-Matic 6 speed RWD Planetary Manual transmission
http://media.gm.com/division/2004_pr...ary_manual.pdf
It has an eighth position on the gear selector labled P?
Someone said it might be a parking gear so the car can have a remote start.
They also mentioned the transmission case is shared with the auto tranny, so it might be heavier, but also stronger.
It has an eighth position on the gear selector labled P?
Someone said it might be a parking gear so the car can have a remote start.
They also mentioned the transmission case is shared with the auto tranny, so it might be heavier, but also stronger.
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Any more info on this would be awesome!
I have never seen this and would like to learn all there is about this tranny.
What is a dry clutch? and how is a plantery tranny different than a 'regular' manual?
And most importantly, will this make it into the new Camaro for '09?
I have never seen this and would like to learn all there is about this tranny.
What is a dry clutch? and how is a plantery tranny different than a 'regular' manual?
And most importantly, will this make it into the new Camaro for '09?
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From a design and manufacturing point of view, this tranny has a lot of advantages in that it is a manual variant of an automatic gearbox. It probably shares about a 70% parts commonality with the automatic versions. The reports that I've read on the new 6LXXE gearboxes states that they are of a modular design. This manual version probably uses a lot of the same modules and would allow continuous mixed model production on the same assembly line. Spare parts stocking is minimized at both the manufacturer, warehouses and dealers. This gearbox probably gives up some weight and packaging benefits when compared to a purely manual design. However, overall it may be a better design.
Steve
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#5
Looks like the GM number crunchers are at it again. After all, it's cheaper to design and make parts that both manual and auto trannies alike can use. But GM didn't do it for us consumers guys. They did it to skimp and save money on potentially hundreds of thousands of transmission parts. They are driven to make money, not driven to innovate and make their products better for us. Sorry to say it, but, that's just the way it is.
Anyway, enough mini-rant. If you thought a T-56 was expensive to fix, just wait for the bill on this puppy when it's out of warranty when it needs fixin.
Anyway, enough mini-rant. If you thought a T-56 was expensive to fix, just wait for the bill on this puppy when it's out of warranty when it needs fixin.
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Planetary gears are the strongest. Also if most of the parts are shared, replacement parts will be cheaper since they will be more common and less varied. Also since it is modular labor will be cheaper too since the whole thing does not need to come apart. Not to mention I am betting there are significantly less parts in these units too then the current transmisions. Seems to me they are thinking of the consumer as well as their own well being. I would put one of these in to replace my T-56.
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Make no mistake this is an automatic. It allows some manual selection( limited) but it is a hydraulic/ torque converter slush box.You can bet it has an upcharge to any prior transmissions used, bar none.
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Originally Posted by BADSZ28
The pdf posted says dry clutch.
and if it was a automatic in a manual mode, it would be....... the exact same thing as a normal automatic, with a diffrent piece of software controlling it..
thats why im asking for his source.
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The 6 speed paddle shift in the new corvette is the base archetecture= an automatic trans. If you read between the lines of that 1 pager it hints that it is fully manual( synchros and mechanical linkage) but based on the planetary gearsets of the automatic. You tell me how this is even possible.Changing to a fully synchronized gear change , with a fully mechanical linkage( rails , levers.forks and synchro sleeves/hubs) AND still using the planetary gearset from the automatic? There is somthing REALLY missing from that statement/ design.
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Originally Posted by Keysplayr
Looks like the GM number crunchers are at it again. After all, it's cheaper to design and make parts that both manual and auto trannies alike can use. But GM didn't do it for us consumers guys. They did it to skimp and save money on potentially hundreds of thousands of transmission parts. They are driven to make money, not driven to innovate and make their products better for us. Sorry to say it, but, that's just the way it is.
Anyway, enough mini-rant. If you thought a T-56 was expensive to fix, just wait for the bill on this puppy when it's out of warranty when it needs fixin.
Anyway, enough mini-rant. If you thought a T-56 was expensive to fix, just wait for the bill on this puppy when it's out of warranty when it needs fixin.
Actually if they are making more parts as both trans use the same parts it would be cheaper.
Futher, I hate it when Americans blame coporations for making things cheaper. CONSUMERS look for the cheapest stuff in the market and there is no longer customer loyality in the auto market. With Asian cars in the mix GM would die if they didn't make things cheaper.
This is bullshit.
It is everyone's fault that things aren't made well. It is all of our decisions that say we want the absolute cheapest product that have driven society to be a plastic, throw away market.
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Originally Posted by calhoon
...it hints that it is fully manual( synchros and mechanical linkage) but based on the planetary gearsets of the automatic. You tell me how this is even possible...
Originally Posted by calhoon
a fully mechanical linkage( rails , levers.forks and synchro sleeves/hubs) AND still using the planetary gearset from the automatic? There is somthing REALLY missing from that statement/ design.
what we do know are simple facts in there.. such as:
A manual transmission that uses a dry
input clutch and a planetary geartrain
but you're just throwing out there that "it is a hydraulic/ torque converter slush box.".
you have no fact basis, yet you state it as fact. while i cant say its clearly a standard cluch from that 1 page pseudo-report.. we can clearly tell that it does not say anything about using a torque converter.. and most likely (this is an assumption) the entire reason the clutch and mechanical linkage is mentioned is to explicitly dispel the myth that this is a auto trans.
my main point of this reply is: dont state your opinion as a fact.
all that said, we're both still playing the wait and see game.
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Well I can stste that I fully understand the inner workings of both auto and manual boxes so I have not discarded the notion lightly.
Please do not hold the layout of a lenco as a marvel of anykind.
What is it you would define as a mechanical linkage? merely a ****?And while it is certainly possible to produce a clean sheet of paper/ all new design that marries the two drive workings, I do not buy it. I base this on opinion laced with nearly 30 years of drivetrain knowledge.Find fault with that as you will . What is it you base your debate on?
The date on the fact sheet is 2004.Seems odd that they have not gotten any word or progress out since that time. I think this is a wish list description or a forgery and has no connection to fact or GM.
Please do not hold the layout of a lenco as a marvel of anykind.
What is it you would define as a mechanical linkage? merely a ****?And while it is certainly possible to produce a clean sheet of paper/ all new design that marries the two drive workings, I do not buy it. I base this on opinion laced with nearly 30 years of drivetrain knowledge.Find fault with that as you will . What is it you base your debate on?
The date on the fact sheet is 2004.Seems odd that they have not gotten any word or progress out since that time. I think this is a wish list description or a forgery and has no connection to fact or GM.
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Originally Posted by calhoon
What is it you would define as a mechanical linkage? merely a ****?
Originally Posted by calhoon
What is it you base your debate on?
there is no debate.