USA Standard 4340 Chrome-Moly axle kit for '79-'87 GM truck & Blazer, GM 8.5", 28 spline w/Super Joints
28 spline inner and 19 spline outer
Fits GM 8.5" in 1979-1987 GM 1/2 ton
Includes inner and outer 4340 Chromoly axles and Yukon Super Joints
Precision, quality USA Standard Gear axles. USA Standard Gear uses precision manufacturing technologies to provide top quality, competition tough axles.
Technical Notes: This axle is larger in diameter than stock 28 spline axles. You will need to purchase carrier case part number YC G26010481 in order to use these axles.