Most farmall 300 tractors have a 2-1/2 inch diameter rear axle. Small percent of 300 tractors have whats called a heavy axle or 2-3/4 inch diameter axle. Thats the same size as a M axle and the cast centers will work on both axles. Depending on the type wheel installed if the bolt heads are cut on the axle clamp or clamps they will loosen on the axle but won't come out of the wheel. So then bolts have to be cut off agian after the wheel is removed from the axle to get the clamps out. Then there's the job of getting the cut bolts out of the clamps if reuseing. If the 300 has 8 spoke cast wheels the clamps will be different from a 6 spoke used on a M. Unless the 6 spoke wheel is a later replacement from IH then the 6 and 8 spoke wheels for a 2-3/4 inch axle use the same axle clamps. Thats not common though. You may already know the 6 and 8 spoke wheels use a different rim. Also if you mean the rim clamps, if the 6 spoke wheel is turned right on the axle just the nuts and clamps on one side need removed. On the 8 spoke wheel one nut and bolt per clamp.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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