New to Me Moldboard
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=141041
Printed Date: 01 Jan 2026 at 12:03am
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Topic: New to Me Moldboard
Posted By: Dave(inMA)
Subject: New to Me Moldboard
Date Posted: 02 Aug 2017 at 3:02pm
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Just acquired a Model 50 3-bottom plow. Two of the bottoms have a moldboard that looks like the picture below. I've been through Plows 101 on the Knowledge Forum and am not able to match it to what I'm seeing there. Can anyone tell me what the proper name for this moldboard is? And the model # for the bottom as a whole? [Hope I've got the terminology right - I'm definitely not a plow expert!] Thanks! Dave  ------------- WC, CA, D14, WD45 |
Replies:
Posted By: Dipstick In
Date Posted: 02 Aug 2017 at 3:21pm
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That moldboard has a funky "cover board",,,,,,, that little part that is raised above the level of the regular moldboard. The purpose of it is to take a little slice of the dirt as it comes up and to flip it over, early, which would cover trash a lot better. I have seen a lot of different styles, but that is a new one to me! As far as the bottom number, the moldboard should have a number stamped in it, which is that particular piece. Bottoms are made up of different styles and shapes for different situations, like sod, clay, rocky ground, and etc! Other guys can better explain this to you, but at least you have a start! ------------- You don't really have to be smart if you know who is! |
Posted By: PaulB
Date Posted: 02 Aug 2017 at 3:42pm
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I've seen quite a few of those shin/coverboards, although only on AC plows, never on any other color ones. However they are much rarer that the ones that mount above the shin. ------------- If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY |
Posted By: Dave(inMA)
Date Posted: 03 Aug 2017 at 6:11am
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Thanks, both of you. Clearly a little different from the plows I've seen around central Massachusetts! I'll have to go looking for numbers when time permits. Dave ------------- WC, CA, D14, WD45 |
Posted By: Bill Long
Date Posted: 03 Aug 2017 at 11:29am
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Dave, If I recall they could well be an after market item. I do not believe they were im the Allis Chalmers Parts book. When we had a trash problem we used an aftermarket offset coulter, similar to the G coulterl Worked fine. Good Luck! Bill Long
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Posted By: Gerald J.
Date Posted: 03 Aug 2017 at 1:35pm
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That is a moldboard with a shin, some AC plow bottoms used shins some didn't. The leading edge of the moldboard tended to wear fast so a shin was easier to update than the whole moldboard. In my plow bottoms book I see the trash cover shin piece offered for 371, 372, 373, 374, and 375 plow bottoms. Different part number for the 375 from the rest. The 370 family bottoms are newer than a 50 plow frame, but since AC used the same plow frog mounting bolts and bolt positions for a very long time a 375 bottom could be mounted on the earlier frame. And the 375 bottom parts were made by several makers for a long time, might even still be made, I haven't looked lately. Gerald J. |
Posted By: Dave(inMA)
Date Posted: 09 Aug 2017 at 10:16pm
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Thanks, Bill and Gerald. Appears that this plow morphed a bit over the years! Dave ------------- WC, CA, D14, WD45 |
Posted By: Gerald J.
Date Posted: 10 Aug 2017 at 10:10am
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It is possible it morphed from the beginning. I believe that ordering an AC plow took three orders. One for the plow frame, one for the hitch, and one for the bottoms. That were assembled by the dealer or the farmer. I don't think there were package orders for a complete assembly with preselected bottoms for a particular plow frame. As far as i can tell (from not being in my plow frames parts book) the 50 was an earlier product than the 60, 70, and 80 but all where made out of mostly stock steel bars bent and bolted together with similar shapes. The distinctive feature of the 50 was the vertical plow shanks where 60, 70, and 80 were slanted. 60 frames like 50 frames were fixed width. 70 and 80 had more bolt holes and pieces so they could be assembled at least a couple different bottom widths. 60 and 70 original plow shanks were shear bolt mounts. 80 came with spring trips. In the plow parts book there are kits for installing spring trip shanks on 60 and 70 plow frames. So morphing and changes were part of the plans. With the 50 being earlier than the 60, 70, and 80 its probable that the available bottoms were fewer. Gerald J. |
Posted By: Dusty MI
Date Posted: 10 Aug 2017 at 10:47am
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The mould board numbers that I've mostly seen are painted on the back side, and after many years of service are rather hard to read. Dusty ------------- 917 H, '48 G, '65 D-10 series III "Allis Express" |
Posted By: PaulB
Date Posted: 10 Aug 2017 at 2:17pm
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Trash coverer shin Assy for 371,372,373 bottoms part #344474, used with brace part # 340965 ------------- If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY |
Posted By: Gerald J.
Date Posted: 10 Aug 2017 at 2:43pm
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Allis plow bottom parts have the part number not the bottom number stamped into the metal, not huge but generally legible unless painted a dozen time. Gerald J. |