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This Yukon USA 4340 chrome-moly axle kit fits 1979–1987 GM truck and Blazer front applications with GM 8.5" differentials and includes Yukon Super Joints. The kit supplies 28-spline inner and outer shafts sized to match original front-axle geometry and uses advanced heat-treating to improve strength, making it a heavy-duty direct-replacement solution.
USA Standard 4340CM Axle Kit For 79-87 GM Truck & Blazer / GM 8.5in / 28 Spline w/Super Joints
