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Welding Axle Tubes To Center Section

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6. The axletubes in our front ProRock 80 are 4x1⁄4-wall chromoly tubing; 3⁄8- and 1⁄2-wall tubes are also available. The big tubes require special machine work to fit the inner knuckle Cs before being pressed and welded into the centersection. Dynatrac is developing an extralarge C and knuckle, which will clear 1550 steering joints.