Yukon Gear & Axle · New
USA Standard 4340 Chrome Moly Axle Shaft / Left Hand Inner For 79+ GM Truck & Blazer 8.5in 30 Spline
MPN ZA W39255 · Store SKU yukZA W39255
Supplier stock checked 11/7/2026, 10:56:24 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
USA Standard Gear performance replacement axles are built with high-tensile strength 4340 chromoly to exceed OE quality. Engineered for an exact fit, USA Standard Gear axles are easy to install. They are heat treated to better absorb trail abuse and provide years of dependable service. 4340 Chrome moly axle shaft, LH inner '79 & up GM Truck & Blazer GM 8.5" 30spl 35.46" 30Spline INNER Left hand 8.5" 79 & UP GM Truck & BLAZER .
Manufacturer fitment & guides
Check ZA W39255 against the manufacturer’s application information below.
Part-specific notes
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