Allis Chalmers Series 70 and 80 Plows

WNYBill

Member
I need to talk to someone who really understands the Series 70 and 80 AC Plows. I have the owners manual, but it doesn't explain the different bottoms and the replaceable points, shins and land slides. I have looked through PLOWS 101 on the other site, but the pictures and description leave something to be desired. Some look like forged points and no shins and mine are completely different. The spring trips don't even look like mine and as near as I can tell there is only one type.

Bill
 
There are 2 types of spring trips on the Allis plows. Did you download and look through the plow bottoms part book?
The trips and 50/60/70/80 series has little to do with the bottoms. the 60/70/80 series were all made at the same time. It just depended if you wanted the Cadillac or not. It is difficult to find what you have only with the parts book. Try to narrow it down by shins, and share bolt placement. If you have a spring trip I would guess you are in the 360 or above molboard model. Good luck!
 
There is only one picture and parts for the spring trip in the Frame book. But, you are saying there are really two types..... good to know. I will go through the plow point book again. My plows use a steel point, about 4" X 16" parallelogram shape with 3 bolts on top and one behind the point.

I am looking at old plows for parts to convert my 2 X 16 to a 3 X 16 and have some spare parts left over. So I would like to find the same bottoms, points and shins. Are there any numbers or anything that identifies the bottoms?

Bill
 
Pages 229 & 227 in the molboard plow manual show the 2 styles. Almost all the plows in the manual are the p.229 style. My plow is the p.227 style. They switched to that p227 spring in 1965 according to the manual.

Last picture on this page shows the new style.
http://www.nnalert/forum/forum_posts.asp?TID=49840&title=wd45-plow-pictures

Here is the old spring trip style
http://www.nnalert/forum/forum_posts.asp?TID=47622&title=allis-plow-id-model-or-series-help
 
Allis Dave,

Thanks, after looking at the pictures and the plow book, I have the new style spring trips too. As far as the plow frame, I believe I have the 82 series because I have the spring trips. The bottoms are 375, I think, because they have the welded bottom support and the four blade bolt holes are not in a straight line like the 373.

Thank you very much Dave.

My plow is a 3 pt hitch, but as I understand it, the Snap Coupler frames are the same and it is just the pull and lift system that are different. They both hook into the same two 2" holes in the frame. Do you agree? At least now when I go to look at these old plows I know what to look for. Thanks Again!

Bill Allis
 
It sounds like you have the same plow as me except mine is snap coupler. My shares have the 3 holes in line and one dropped hole at the point.

I think that like you say the frames are the same. You can interchange the 3-point and snap coupler hitches
 
Have you ever found a number or any markings on the frame or bottoms? The bottoms we have must of been the latest, most of the plow bottoms I have looked at and seen pictures of seem to be earlier, a lot of them have forged points and no shins. I think the frames were all the same and just the bottoms changed.

I found points and shins at Tractor Supply back when they were Central Tractor. Have you found a source?

Bill
 

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