A 21-speed tranny?
#1
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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#2
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Join Date: Mar 2006
Location: Las Cruces, NM
Posts: 1,004
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)
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You can take the driver out of the truck but you cant take the truck out of the driver.
#6
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Join Date: Oct 2006
Location: New Bloomfield, PA
Posts: 6
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.
#7
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Join Date: Nov 2004
Posts: 12,859
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.
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#8
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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#9
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Join Date: Mar 2006
Location: Las Cruces, NM
Posts: 1,004
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?
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You can take the driver out of the truck but you cant take the truck out of the driver.
#10
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Join Date: Nov 2004
Posts: 12,859
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?
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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)

