Hi we had same problem with our 684. Solution was to shorten the left lift link. The yoke part of the lift link screws into a nut on the lower lift link. By removing one end of the lift link and turning it in proper direction the lift link will be shortened. Be Careful not to shorten it to much or the upper lift link will protrude thru the bottom and bind on the 3pt arm when lowered all the way. The right lift arm can then be adjusted with levelling crank. Again be careful that the threaded part of lift arm dose not contact 3pt lift arm. We actually shortened the lift arm by cutting 3/4" off the bottom on both sides. Downside is the 3pt hitch will not lower to the ground as much but this is not a problem for most implements.
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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