I do not know what other tractor it will work on. Check out the ATT Photos!! We simply removed them from the running tractor. I have NOT had it professionally checked!! Simply took it off of a running tractor and here it is for you.We did MIC it, see the measurements wrote on it. Check out my other GREAT auctions. Etna In at no additional cost to you. The item "Farmall 300 RC Tractor gas engine motor crank shaft crankshaft & gear 43734DG" is in sale since Saturday, March 30, 2019. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Antique & Vintage Equipment Parts". The seller is "greenbackin" and is located in Warren, Indiana. This item can be shipped to United States.