WC Sherman Underdrive for sale
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=20703
Printed Date: 08 May 2025 at 4:11am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WC Sherman Underdrive for sale
Posted By: Larry Swenson
Subject: WC Sherman Underdrive for sale
Date Posted: 12 Nov 2010 at 10:48am
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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 |
Replies:
Posted By: Dutchboy Johan
Date Posted: 12 Nov 2010 at 2:43pm
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What's a WC Sherman?? ------------- ---> Better by Design <--- Johan Straver, Almkerk/ Netherlands Allis-Chalmers 190XT Ser.III #26829XTD |
Posted By: AllisChalmers37
Date Posted: 12 Nov 2010 at 2:55pm
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 |
Dutchboy Johan wrote:Posted By: Fred in Pa
Date Posted: 12 Nov 2010 at 3:48pm
| A TANK !! LOL |
Posted By: CTuckerNWIL
Date Posted: 12 Nov 2010 at 5:15pm
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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" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: AllisChalmers37
Date Posted: 12 Nov 2010 at 5:23pm
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oops! LOL ------------- 1937 WC, 1950 CA, 1959 D14, 1967 190XT, 2006 Ram 3500 |
Posted By: Larry(OH)
Date Posted: 13 Nov 2010 at 7:19am
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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!! |
Posted By: MNLonnie
Date Posted: 13 Nov 2010 at 7:27am
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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 |
Posted By: DrAllis
Date 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. |
Posted By: MNLonnie
Date Posted: 13 Nov 2010 at 7:39am
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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 |
Posted By: Breeze
Date Posted: 13 Nov 2010 at 7:42am
| Is it Allis specific, or possible to plate it to any other brands? |
Posted By: ALinIL
Date Posted: 13 Nov 2010 at 12:16pm
| Question - Can the gears be flippped in a underdrive unit to make it a overdrive unit? |
Posted By: RyanTN
Date 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. |
Posted By: AllisChalmers37
Date Posted: 13 Nov 2010 at 4:34pm
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 |
Posted By: Brad MI
Date 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.
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Posted By: MNLonnie
Date Posted: 13 Nov 2010 at 5:12pm
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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 |
Posted By: Andy in Central IA
Date Posted: 13 Nov 2010 at 5:59pm
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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 |
Posted By: MNLonnie
Date Posted: 13 Nov 2010 at 6:03pm
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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 |
Posted By: Andy in Central IA
Date Posted: 13 Nov 2010 at 6:07pm
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I will see if I can try that tomorrow afteer I dig it out. ------------- Andy Central IA |
Posted By: TedBuiskerN.IL.
Date Posted: 13 Nov 2010 at 9:39pm
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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. |
Posted By: Larry(OH)
Date Posted: 13 Nov 2010 at 10:19pm
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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!! |
Posted By: Jfrey2040
Date Posted: 28 Feb 2019 at 8:51am
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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. |
Posted By: Unit3
Date Posted: 01 Mar 2019 at 7:18pm
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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 |
Posted By: DennisA (IL)
Date Posted: 01 Mar 2019 at 7:32pm
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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 |