Yukon front 4340 Chrome-Moly axle kit for ’79-’87 GM 8.5″ 1/2 ton truck and Blazer with 30 splines.

Yukon Gear and Axle manufactures the highest quality and widest selection of performance axles in the market. Yukon uses the latest in heat treatment technology and high quality alloys to maintain our competitive edge. In-house engineering and quality labs ensure every axle is of the highest strength and standards for track racing, boulder climbing, desert racing, sled pulling, or whatever moves you forward. Yukon?s 4340 chromoly axles are up to 37% stronger than other aftermarket axles and come with a lifetime warranty.

30 spline inner and 19 spline outer

Fits GM 8.5″ in 1979-1987 GM 1/2 ton

Fits GM 8.5″ in 1979-1987 GM 1/2 ton