6 speed vs. 10 speed differences

Discussion in 'Questions From New Drivers' started by TurtlesLikeI, Aug 13, 2018.

  1. TurtlesLikeI

    TurtlesLikeI Light Load Member

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    Hello, could someone explain to me what to expect between a “normal” semi 10spd and what I assume is a medium duty eaton 6spd (it’s a smallish medium duty tanker/fuel hauler).

    I have a road test tomorrow for a company and I’m pretty nervous about it because I’ve only driven a 10spd and that was almost 2 years ago because my former company gave me an auto after orientation.

    Does the 6spd still need ‘rev matching’ on downshift? Does it shift more like a car with the clutch pushed all the down, or a truck with it only pushed down a tiny bit?
     
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  3. skellr

    skellr Road Train Member

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    6 spds usually have syncros, more syncros, so you can single clutch it like a 4-wheeler. Floating is not recommended. rev matching helps but it is more tolerant anout it than a 10spd.
     
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  4. x1Heavy

    x1Heavy Road Train Member

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    You don't float the 6 speeds. But you don't ram them through like a car shifter.

    Take a heartbeat or two as you get from one gear to the next with appropriate RPM's which I imagine will be much larger in range than a big truck.

    Its taking a nice staffer for a drive test. Im not nervous about that. It's what you do not yet know or have not yet learned is the stressor here.
     
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  5. Ridgeline

    Ridgeline Road Train Member

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    Not all 6 or 6+1 have syncros. Double clutch is your friend.
     
  6. okiedokie

    okiedokie Road Train Member

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    That's the way I drive the wife. I'll be here till beer 30.
     
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  7. street beater

    street beater Road Train Member

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    Treat it basically the same as a 10 speed. Cept no splitter. Least not on any 6 pack I've seen. Easy money
     
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  8. Cam Roberts

    Cam Roberts Road Train Member

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    Eaton synchro 6 has to be used with single clutch like driving a car. It’s is a terrible trans and if it’s just a few years old the synchros will be trashed anyway so either double clutch of float then if the thing is grinding while trying to put into gear
     
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  9. Dino soar

    Dino soar Road Train Member

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    The medium duty 6 speeds that I drove you need to use the clutch.

    You need to double clutch and just take your time when you shift and it will fall right into gear.

    If you try to shift quickly or you are in a hurry you'll have a problem.

    If you know how to drive a manual transmission you won't have any problem. Like I said just take your time and double clutch and everything will work out for you.
     
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