REAR WHEEL INNER WEIGHT (38" AND 42" HEAVY OFFSET CAST WHEEL)(TIRE SIZE 18.4-38,18.4-42, 20.8-38) 80 WHEELS, FRONT AXLES, SHEET METAL 4050, 4250 and 4450 Tractors (Engine:6466D,6466T,6359T)(Worldwide Edition) PC1901 in TRACTOR 6466