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Midnight Flyer
Joined: 08 Feb 2005
Posts: 1187
Location: Livin' large in the Ozark mountains of western Arkansas
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| Posted: Fri Apr 11, 2008 6:33 pm Post subject: Are 15-speed trannies dead? |
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| :D Looking at Truck Paper's website I've noticed that all the big rigs either have 9-speed, 10-speed, 13-speed, or 18-speed transmissions but have rarely seen any advertised with 15-speeds. Have they gone the way of polyester leisure suits, 8-track tape players, and platform shoes or are they still made and only used in very rare specialized applications? 8) |
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Fredog
Joined: 23 Apr 2005
Posts: 2152
Location: North Georgia
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| Posted: Fri Apr 11, 2008 8:00 pm Post subject: Re: Are 15-speed trannies dead? |
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Midnight Flyer wrote: :D Looking at Truck Paper's website I've noticed that all the big rigs either have 9-speed, 10-speed, 13-speed, or 18-speed transmissions but have rarely seen any advertised with 15-speeds. Have they gone the way of polyester leisure suits, 8-track tape players, and platform shoes or are they still made and only used in very rare specialized applications? 8)
we have one, its a 98 pete 379 I hate it |
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allan5oh
Joined: 26 Aug 2005
Posts: 2137
Location: jackassville (winnipeg, mb)
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| Posted: Fri Apr 11, 2008 8:07 pm Post subject: |
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| I do not see them on spec sheets any more. They're more of a vocational transmission anyways. New 15 speeds also cannot handle torque very well. |
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Fredog
Joined: 23 Apr 2005
Posts: 2152
Location: North Georgia
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| Posted: Fri Apr 11, 2008 8:14 pm Post subject: |
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allan5oh wrote: I do not see them on spec sheets any more. They're more of a vocational transmission anyways. New 15 speeds also cannot handle torque very well.
mine has super 10 and since they unhooked the automatic part, I love it. a regular 10 speed is just too much work |
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Useless
Joined: 08 Oct 2005
Posts: 3137
Location: Canyon Lake, Tx.
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| Posted: Fri Apr 11, 2008 10:24 pm Post subject: Re: Are 15-speed trannies dead? |
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Midnight Flyer wrote: :D Looking at Truck Paper's website I've noticed that all the big rigs either have 9-speed, 10-speed, 13-speed, or 18-speed transmissions but have rarely seen any advertised with 15-speeds. Have they gone the way of polyester leisure suits, 8-track tape players, and platform shoes or are they still made and only used in very rare specialized applications? 8)
Hi, Midnight!!
There are plenty of 'trannies" around, but I think that most of them are now living in San Francisco!!
Now, as to whether or not the have 15 speeds??!!
I do not know!! ........ nor do I WANT to!! :D |
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Orangetxguy
Joined: 23 Jan 2007
Posts: 1495
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| Posted: Fri Apr 11, 2008 10:39 pm Post subject: |
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| Didn't they store the 15 speeds in the same back lot as the 23 speeds and the browning boxes?? |
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Chasing Daylight
Joined: 23 Oct 2007
Posts: 131
Location: SE Arizona
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| Posted: Sat Apr 12, 2008 2:34 am Post subject: |
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| They still produce a 15, at least Eaton Fuller does. It's basically set up as ten road gears and five deep reduction gears. Not much use excapt for in on/off highway vocational applications. My rock jockie friends swear by them. |
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special k
Joined: 10 Jul 2005
Posts: 247
Location: Ontario Canada
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| Posted: Sat Apr 12, 2008 6:00 am Post subject: |
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| The only reason you don't see as many 15's around anymore is that they don't have the torque rating of the 18 so the OEM's won't put them behind a big motor. If Eaton would have upgraded the trans to 1850 or 2000 I'd be running one today. IMO a 1450 15 is a better trans than a 1850 18. |
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Splitshifter
Joined: 19 Jun 2006
Posts: 644
Location: Right here
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| Posted: Sat Apr 12, 2008 6:04 am Post subject: |
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| In an application where you're doing heavy haul or running in steep hill country, the 18 would be a better choice because you can split every gear. |
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Midnight Flyer
Joined: 08 Feb 2005
Posts: 1187
Location: Livin' large in the Ozark mountains of western Arkansas
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| Posted: Sat Apr 12, 2008 6:48 am Post subject: Re: Are 15-speed trannies dead? |
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Useless wrote: Midnight Flyer wrote: :D Looking at Truck Paper's website I've noticed that all the big rigs either have 9-speed, 10-speed, 13-speed, or 18-speed transmissions but have rarely seen any advertised with 15-speeds. Have they gone the way of polyester leisure suits, 8-track tape players, and platform shoes or are they still made and only used in very rare specialized applications? 8)
Hi, Midnight!!
There are plenty of 'trannies" around, but I think that most of them are now living in San Francisco!!
Now, as to whether or not the have 15 speeds??!!
I do not know!! ........ nor do I WANT to!! :D
:lol: :lol: Now that was funny!! :lol: :lol: |
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heavyhaulerss
Joined: 29 Jan 2007
Posts: 545
Location: north alabama
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| Posted: Sat Apr 12, 2008 6:55 am Post subject: |
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| Quote: mine has super 10 and since they unhooked the automatic part, I love it. I also have a super 10. what do you mean when you say they unhooked the automatic part ? |
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Fozzy
Joined: 02 Sep 2005
Posts: 2460
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| Posted: Sat Apr 12, 2008 7:12 am Post subject: |
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heavyhaulerss wrote: Quote: mine has super 10 and since they unhooked the automatic part, I love it. I also have a super 10. what do you mean when you say they unhooked the automatic part ?
Probably means the "Top 2" function.. |
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Fredog
Joined: 23 Apr 2005
Posts: 2152
Location: North Georgia
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| Posted: Sat Apr 12, 2008 8:22 am Post subject: |
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heavyhaulerss wrote: Quote: mine has super 10 and since they unhooked the automatic part, I love it. I also have a super 10. what do you mean when you say they unhooked the automatic part ?
the mechanic unplugged something so the top 2 dont shift automatically anymore, it is much much better that way, only shifts when I want it to. pulling a tank doesnt work well with the auto shift function.. |
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