Great video showing how the internals of an allison works

[duratothemax]

Couple goof-ups in there, but generally a really good video IMO that gives a great visual of how a clutch-to-clutch automatic transmission like the Allison works. If you've ever wondered just how exactly "only" 3 planetary gearsets and clutches can work together to give you 6 forward gears and 1 reverse gear, take a look at this video.

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Ben

 

[duramaxdiesel]

Cool find on YouTube, Ben:thumb:

Nick

 

[emiller3]

Cool vid, definitely gives a better understanding on how it works.

 

[crazycrew]

WOW!! Great vid. Didn't realize they worked like that. Those C1's/C2's surely take a beating

 

[skintback]

Cool vid

Is that avatar pic from the 25K race in bradington you look a little sunburnt :roflmao:

 

[ChevyTruck]

Interesting video to watch, I learned a thing or two. Thanks for posting.

 

[SmokeShow]

Very cool.

Could there be a 7th gear (a 3rd OD gear) via C2 & C5 at the same time?

 

[Maricopaagent]

No reverse?

 

[Mike L.]

Very cool.

Could there be a 7th gear (a 3rd OD gear) via C2 & C5 at the same time?

You better wear a chastity belt for that combo. :roflmao:

 

[duratothemax]

Very cool.

Could there be a 7th gear (a 3rd OD gear) via C2 & C5 at the same time?

if you apply C2 and C5 together at anything over 0mph, you will hear some expensive-sounding noises..

 

[coker6303]

Nice!! Is rather not see my tranny internals anytime soon...

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[SmokeShow]

LOL Guess not.

Just thought maybe since the trend was going 1-5, 1-4, 1-3, 1-2, 2-3, 2-4.... So thought maybe there could be a third OD if 2-5 were possible. Or did I misunderstand the sequence?

 

[dordtrecht5]

LOL Guess not.

Just thought maybe since the trend was going 1-5, 1-4, 1-3, 1-2, 2-3, 2-4.... So thought maybe there could be a third OD if 2-5 were possible. Or did I misunderstand the sequence?

No, I don't think you misunderstood. Or, maybe we both are misunderstanding cuz I was wondering the same thing.


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[WTF]

No, I don't think you misunderstood. Or, maybe we both are misunderstanding cuz I was wondering the same thing.


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I was thinkin the same thing maybe we are all just lost

 

[TrentNell]

LOL Guess not.

Just thought maybe since the trend was going 1-5, 1-4, 1-3, 1-2, 2-3, 2-4.... So thought maybe there could be a third OD if 2-5 were possible. Or did I misunderstand the sequence?

You are correct in the sequence but this pics shows exactly why , the C-2 hub is splined directly to the P-2 carrier / P-3 ring gear , so if you engage both C-2 and C-5 at the same time it will either stall the motor out and go into a skid or break the hub in half :baby: , likely it would just strip the spline but either way .................... = no fun :rofl:

 

[duratothemax]

You are correct in the sequence but this pics shows exactly why , the C-2 hub is splined directly to the P-2 carrier / P-3 ring gear , so if you engage both C-2 and C-5 at the same time it will either stall the motor out and go into a skid or break the hub in half :baby: , likely it would just strip the spline but either way .................... = no fun :rofl:

Exactly.

 

[llymax05]

Great video. I'm learning about the Allison transmissions in school right now and it helped me understand a little more

 

[Bobo]

I was thinkin the same thing maybe we are all just lost

Reverse is C3, C5 FYI.

 

[SgtKilroy]

Very cool! Thanks for sharing that!:thumb: