# USA Standard 4340 Chrome-Moly Axle Kit For 79-87 GM Truck & Blazer / GM 8.5in / 30 Spline

USA Standard Gear performance axles are constructed from high-tensile strength 4340 chromoly, use superior manufacturing methods, and feature advanced heat-treating technologies to create an axle of unparalleled quality and durability.

-   Includes 30 spline, 35.46” inner LH axle
-   Includes 30 spline, 19.15” inner RH axle
-   Includes 19 spline, 9.94” outer axles
-   Heavy duty 4340 chromoly construction
-   Fits GM 8.5” front differential
-   Includes 1310 Series u-joints

This Part Fits:

Year

Make

Model

Submodel

1988-1991

Chevrolet

Blazer

Scottsdale

1988-1991

Chevrolet

Blazer

Silverado

1988

Chevrolet

V10 Suburban

Scottsdale

1988

Chevrolet

V10 Suburban

Silverado

1989-1991

Chevrolet

V1500 Suburban

Scottsdale

1989-1991

Chevrolet

V1500 Suburban

Silverado

1988

Chevrolet

V20 Suburban

Scottsdale

1988

Chevrolet

V20 Suburban

Silverado

1989-1991

Chevrolet

V2500 Suburban

Scottsdale

1989-1991

Chevrolet

V2500 Suburban

Silverado

1988-1989

GMC

V1500 Suburban

Base

1988-1989

GMC

V1500 Suburban

Sierra Classic

1988-1991

GMC

V2500 Suburban

Base

1988-1989

GMC

V2500 Suburban

Sierra Classic

1990

GMC

V2500 Suburban

SLE

## Details

- **Price:** 1364.25 CAD
- **Vendor:** Yukon Gear & Axle
- **Type:** Axles

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1364.25 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/usa-standard-4340-chrome-moly-axle-kit-for-79-87-gm-truck-blazer-gm-8-5in-30-spline)
> Updated: 2026-06-28