Dual high trany installed backwords.

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KimVanOrder
Posts: 529
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Dual high trany installed backwords.

Post by KimVanOrder » July 31st, 2015, 4:47 pm

So, on an old doodle bug, gramps had a transmission mounted behind the regular transmission to speed it up. Can an AA Dual High tranny be mounted in backwards to make it an Overdrive?

KVO
KVO
Dec. '28 AA

Stakebed
Posts: 1187
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Dual high trany installed backwords.

Post by Stakebed » July 31st, 2015, 7:18 pm

yes and no... they do work, for awhile but run VERY hot and will eventually kill themselves.

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macswoods
Posts: 277
Joined: May 4th, 2009, 1:20 pm
Body Type: 82-A
Model Year: 1929
Location: Wilhoit, Arizona

Re: Dual high trany installed backwords.

Post by macswoods » July 31st, 2015, 7:32 pm

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Last edited by macswoods on August 1st, 2015, 5:55 pm, edited 1 time in total.

Stakebed
Posts: 1187
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Dual high trany installed backwords.

Post by Stakebed » July 31st, 2015, 8:03 pm

well the "dual high" in its standard config is a 1:1 ratio but when engauged its a 2:1 ratio using planetary gears. Planetary gears just dont like to be ran the other way around. plus they are also noisy due to planetary nature.

KimVanOrder
Posts: 529
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: Dual high trany installed backwords.

Post by KimVanOrder » August 1st, 2015, 5:07 pm

Thanks for the info. I guess it is back to the drawing board for me. Thanks again.

KVO
KVO
Dec. '28 AA

Stakebed
Posts: 1187
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Dual high trany installed backwords.

Post by Stakebed » August 1st, 2015, 10:23 pm

I thought someone mentioned an overdrive used in old old old (like 1960's) volvos could be adapted... but to me that seems rarer than the warford setup...

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spectria
Posts: 1874
Joined: May 15th, 2008, 9:53 pm
Body Type: Mail Truck, Stakebed
Model Year: 1931
Location: Quincy, Ca.

Re: Dual high trany installed backwords.

Post by spectria » August 1st, 2015, 10:53 pm

Stakebed wrote:I thought someone mentioned an overdrive used in old old old (like 1960's) volvos could be adapted... but to me that seems rarer than the warford setup...
That Volvo overdrive was a great source of income in my shop (needing repairs frequently)...
Dave in Quincy, Ca. I love Pics!!!! Post them All!!! :)
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