A 21-speed tranny?

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Old 10-13-2006, 03:36 AM
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Default A 21-speed tranny?

An old salt driver the other day told me he drove a 21-speed tranny in a truck at one time. I've heard of 18-speeds but never 21. Is there (or was there) such a thing? 8)
 
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Old 10-13-2006, 07:23 AM
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Default Re: A 21-speed tranny?

Originally Posted by Midnight Flyer
An old salt driver the other day told me he drove a 21-speed tranny in a truck at one time. I've heard of 18-speeds but never 21. Is there (or was there) such a thing? 8)
Maybe he was talking about a Spicer 6 X 4 twin stick.
 
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Old 10-13-2006, 08:26 AM
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yep-2 sticks but the Mercedes we drove in Iraq were 21's with a Double H pattern.
 
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Old 10-13-2006, 09:28 AM
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:shock: Mine hand would fall off.
 
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Old 10-13-2006, 09:32 AM
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I believe Spicer made a 20 speed.
 
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Old 10-13-2006, 12:22 PM
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There was a Spicer 21 in the late 60's and early 70's Mainly used in large construction rigs. I drove for Shaffer then (When Domer Shaffer actually owned it) and drove a purple Pete' with one. It was a construction rig glidered to do OTR. (Ugly thing was called the Grape Ape) It was matched with a v-12 Detroit and used more oil that it did fuel. It was a 5X4 with a low-low hole for construction.
Never did figure out how fast it ran but I do know that statie outside of Waco though there was something wrong with his car as it took him so long to catch me.
 
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Old 10-13-2006, 01:51 PM
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Originally Posted by Unicorn

There was a Spicer 21 in the late 60's and early 70's Mainly used in large construction rigs. I drove for Shaffer then (When Domer Shaffer actually owned it) and drove a purple Pete' with one. It was a construction rig glidered to do OTR. (Ugly thing was called the Grape Ape) It was matched with a v-12 Detroit and used more oil that it did fuel. It was a 5X4 with a low-low hole for construction.
Never did figure out how fast it ran but I do know that statie outside of Waco though there was something wrong with his car as it took him so long to catch me.
That Detroit V12 could Haul-Drove one for a few months-Didn't have to worry about Oil changes because you were doing it automatically while on the Road :P
 
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Old 10-14-2006, 01:53 AM
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Didn't the older Macks have a five speed or such shift pattern but to change ranges i.e. low, direct, overdrive and reverse all you did was move the selector knob that was on top of the stick?
 
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Old 10-14-2006, 02:59 AM
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Originally Posted by Jumbo
Didn't the older Macks have a five speed or such shift pattern but to change ranges i.e. low, direct, overdrive and reverse all you did was move the selector knob that was on top of the stick?
Spicer made some transmissions like that. They made "non-repeating" 14, 16 and 18 speed transmissions. In fact, they still do for foreign markets.
 
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Old 10-14-2006, 04:34 AM
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Originally Posted by Jumbo
Didn't the older Macks have a five speed or such shift pattern but to change ranges i.e. low, direct, overdrive and reverse all you did was move the selector knob that was on top of the stick?
I remember the Low-Direct-and Overdrive selector on the Side of the Knob but don't remember a Reverse on it.
 
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