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-   -   What's the difference between a family truck and a Class 8 trucks transmission? (https://www.truckconversion.net/forums/f104/whats-difference-between-family-truck-class-8-trucks-transmission-4815/)

BravestDog 03-05-2007 08:51 PM

What's the difference between a family truck and a Class 8 trucks transmission?

Why is it that with a family truck, you can shift it normally, accelerate, push in the clutch, shift...but with a class 8, you must shift without a clutch and time it with the RPM.

What makes the Class 8 transmissions different and why are the Class 8 transmissions like that? Why can't they function like a regular sized trucks transmission?

Camping Dutchman 03-06-2007 04:01 AM

Syncronized and non syncronized

BravestDog 03-06-2007 11:17 AM

So the family truck would have a syncronized and the Class 8 would have a non syncronized transmission?

Why would the Class 8 have a non syncronized transmission?

Would it be the cost to manufacturer such, impossible to build...?

Camping Dutchman 03-06-2007 02:05 PM

I believe it's the other way around. I just learned that term when I had my trans redone in my FL70. Found out it's not syncronized...

Wick 03-07-2007 09:33 AM

BravestDog,
You can use the clutch on the class 8 but you still must match the rpm's. The class 8 transmission has syncronzers as well but they do things a bit differently. I have never been told why they do not make them to operate like the smaller transmissions. I would suppose that it has to do with the size and load they handle as well as making something that will go a million or more miles.
Wick


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