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WC Sherman Underdrive for sale
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Larry Swenson View Drop Down
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Joined: 13 Sep 2009
Location: Easton, MN
Points: 610 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Larry Swenson Quote  Post ReplyReply Direct Link To This Post Topic: WC Sherman Underdrive for sale
    Posted: 12 Nov 2010 at 10:48am
For Sale:  WC Sherman underdrive for tractor pullers.  $500.00.

Located in southern Minnesota.

Ph.507-787-2338  (leave message if we aren't here).

Email:  Lswenson@bevcomm.net
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Dutchboy Johan View Drop Down
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Joined: 14 Sep 2009
Location: Netherlands
Points: 571 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dutchboy Johan Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 2010 at 2:43pm
What's a WC Sherman??
---> Better by Design <---

Johan Straver, Almkerk/ Netherlands

Allis-Chalmers 190XT Ser.III #26829XTD
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AllisChalmers37 View Drop Down
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Joined: 11 Jul 2010
Location: London,KY
Points: 1846 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AllisChalmers37 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 2010 at 2:55pm
Originally posted by Dutchboy Johan Dutchboy Johan wrote:

What's a WC Sherman??
 
it is an auxiliary transmission that takes the WC from having 4 gears that are all very slow to having a higher number (7??) of forward and 2 reverse. It gives you a gear in between the ones on the stock transmission. It helped when time to use equipment at certain speeds and you wouldn't want to set the tractor at full throttle or at idle to keep that speed. It also boosted the 9.5mph top speed to, what the ad said, 14mph.  
1937 WC, 1950 CA, 1959 D14, 1967 190XT, 2006 Ram 3500
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Fred in Pa View Drop Down
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Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fred in Pa Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 2010 at 3:48pm
A TANK !! LOL
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CTuckerNWIL View Drop Down
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22822 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 2010 at 5:15pm
Larry has an underdrive which would make all normal gears slower. You would have to have overdrive to make the tractor go faster.
http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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AllisChalmers37 View Drop Down
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Joined: 11 Jul 2010
Location: London,KY
Points: 1846 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AllisChalmers37 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Nov 2010 at 5:23pm
oops! LOL
1937 WC, 1950 CA, 1959 D14, 1967 190XT, 2006 Ram 3500
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Larry(OH) View Drop Down
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Joined: 11 Sep 2009
Location: Shreve Ohio
Points: 1577 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Larry(OH) Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 7:19am
i need a gear for the rear of an overdrive.  Bought one at a sale ans is missing the rear gear.  This is the one that always comes up missing when removing them.  Also, mine is the wide gear, not the earlier, narrow one.  Hell, I'd even make someone a deal on it for a drop box!!
'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie

*ALLIS EXPRESS contact*

I can explain it to you, BUT I cannot understand it for you!!
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MNLonnie View Drop Down
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Joined: 11 Sep 2009
Location: Baxter MN
Points: 4791 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MNLonnie Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 7:27am
What is the gearing difference with an underdrive, I've heard 25% on the overdrives?
Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21408 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 7:35am
I've always figured it was the same split in ratios...either up 20-25% or down 20-25%. The underdrives were used for mounted cornpickers so you had a slower "low" gear and also a slower than road gear speed so it was between regular 3rd and regular 4th.
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MNLonnie View Drop Down
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Joined: 11 Sep 2009
Location: Baxter MN
Points: 4791 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MNLonnie Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 7:39am
If I used my Speed Patrol more I would like to slow it down but I'm not sure 25% would be enough, 50% would be ideal.
Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker
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Breeze View Drop Down
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Joined: 11 Sep 2009
Location: Ga
Points: 8931 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Breeze Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 7:42am
Is it Allis specific, or possible to plate it to any other brands? 
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ALinIL View Drop Down
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Joined: 20 Sep 2009
Location: Frankfort, IL
Points: 316 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ALinIL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 12:16pm
Question - Can the gears be flippped in a underdrive unit to make it a overdrive unit?
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RyanTN View Drop Down
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Joined: 12 Sep 2009
Location: Stewart Co, TN
Points: 415 		Post Options Post Options   Thanks (0) Thanks(0)   Quote RyanTN Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 12:50pm
Not trying to hi-jack Larry's post, but no Al- you cannot swap the gears around in a Sherman transmission.
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AllisChalmers37 View Drop Down
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Joined: 11 Jul 2010
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Points: 1846 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AllisChalmers37 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 4:34pm
Originally posted by Breeze Breeze wrote:

Is it Allis specific, or possible to plate it to any other brands? 
 
I've seen and heard of Shermans being put into the Ford N series.
1937 WC, 1950 CA, 1959 D14, 1967 190XT, 2006 Ram 3500
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Brad MI View Drop Down
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Joined: 12 Sep 2009
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Points: 339 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brad MI Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 4:47pm
Sherman tranny's were available for many tractors including the B/C/CA and WC/WF Allis' tractors. No, they are not interchangeable they were made specific to each tractor.  I have  a CA with one and a WC unit on the shelf. If I remember correct my WC/WF unit is a step-up.

Originally posted by Breeze Breeze wrote:

Is it Allis specific, or possible to plate it to any other brands? 
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MNLonnie View Drop Down
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Joined: 11 Sep 2009
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Points: 4791 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MNLonnie Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 5:12pm
I wonder if different tractors had different geared under/overdrives because my 2N has an underdrive and I'm pretty sure it's 50%.
Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker
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Andy in Central IA View Drop Down
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Joined: 13 Sep 2009
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Points: 19 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy in Central IA Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 5:59pm
I have one of the units.  How do I tell if it is a step up or step down?  Would anyone like to buy it?
Andy Central IA
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MNLonnie View Drop Down
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Joined: 11 Sep 2009
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Points: 4791 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MNLonnie Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 6:03pm
I've never had one off the tractor but there should be an input and output shaft. Turn the input 1 rotation and see if the output turns more or less than 1 turn.
Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker
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Andy in Central IA View Drop Down
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Joined: 13 Sep 2009
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Points: 19 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy in Central IA Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 6:07pm
I will see if I can try that tomorrow afteer I dig it out.
Andy Central IA
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TedBuiskerN.IL. View Drop Down
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Joined: 11 Sep 2009
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Points: 1959 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TedBuiskerN.IL. Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 9:39pm
The housings are the same, but the gears are different from and underdrive to an overdrive, you can't just reverse the existing gears.
Most problems can be solved with the proper application of high explosives.
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Larry(OH) View Drop Down
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Joined: 11 Sep 2009
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Points: 1577 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Larry(OH) Quote  Post ReplyReply Direct Link To This Post Posted: 13 Nov 2010 at 10:19pm
I have some info on them with tooth counts for top and bottom gears.  Barney helped me with what I have, but I cannot find the gar I need.
'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie

*ALLIS EXPRESS contact*

I can explain it to you, BUT I cannot understand it for you!!
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Jfrey2040 View Drop Down
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Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Jfrey2040 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 2019 at 8:51am
Hi I know this is a complete long shot but just wanted to see if there was a under drive transmission still out there thank you.
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Unit3 View Drop Down
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Joined: 17 Oct 2009
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Points: 5572 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Unit3 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 2019 at 7:18pm
The man that bought our WC new in '36 had an under drive installed. Low gear was to fast for his combine. We had a plow day some years back. I was in behind a styled WC. He pulled in 2nd. I pulled in the low side of 2nd. He pulled away from me, until I shifted to 3rd low range. Oh, the fun you can have with a WC and a two speed rear end.
2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C
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Points: 2064 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DennisA (IL) Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 2019 at 7:32pm
I always wanted to add one to my CA. Seems like no body wanted to sell. All I got was "I got one & you can't afford it".
Sure would be nice for me just adding the 6" of extra leg room. I could go back to the pan seat again.
Thanks & God Bless

Dennis
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