Case is my favorite tractor but if you are considering pulling a Case tractor, there are a few important considerations that you need to be aware of. First, drawbar ht and drawbar for/aft position. Many Case models have mechanism down low behind the rear axle that prevents a winable drawbar from being rigged. (Many other brands have much better situations for getting the drawbar right.) For examples the 1270, 1370, 1570, eagle hitch DC's, LA's etc have baggy rear ends and horrible drawbar situations for being competitive in a pulling contest. I am tired of being embarrassed by dreamers who hook these baggy rear end Case tractors with long droopy drawbars and a dangling twisted clevis to a pulling sled. Their plow is cleaned from the git-go. Unless you are willing to do some serious modifications to these baggy rear ended Case tractors leave them at home--hooked to serious tillage tools where they work great. A key to not getting your plow cleaned is to construct your drawbar in a way that holds the sled chain at a steep angle. The steep angle pulls up on the sled (reducing the drag force) and down on the tractor (increasing its tractive pull power). Other detrimental factors that reduce the steepness of the sled's chain angle include rear tire squat, tire rutting, front end rearing off the ground, and using a clevis. A winning drawbar has the hook hole large enough for the sled hook to engage through. Never use a clevis. Many of the S, L, C, and D series Case tractors are quite easy to find hardware needed to provide the space needed to modify and rig a competitive drawbar. Once you get the drawbar right, you will now need enough axle torque to spin out at the end of the pull. Many of the older Case tractors have too high a low gear to spin out with a good drawbar arrangement. Engine modifications are well known. Perhaps a lesser know fact is the DC has a larger final drive chain sprocket that the D has. This means the DC has more axle torque than the D has. The puller tractor I am rigging this winter is a 49 D Case with DC final drive sprockets and axle bars. The rear wheels are D size with metal disc for reduced weight. The engine has 4" pistons and is getting a high compression head. Know where I can find some domed pistons?
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