SKU: ZA G551818 | UPC: 883584350590
USA Standard Gear ZA G551818 Axle Shaft for 1977-1988 Monte Carlo, El Camino, Buick Regal & More
USA Standard Gear ZA G551818 is a precision-engineered passenger-side axle shaft designed for GM vehicles equipped with 8.5-inch 10-bolt rear differentials and 28-spline axles. This direct replacement restores smooth power delivery and dependable drivetrain performance in classics like Chevrolet Monte Carlo, El Camino, Malibu, Buick Regal, Oldsmobile Cutlass Supreme, and Pontiac Bonneville. Built from high-strength alloy steel with heat treatment for extended service life under demanding conditions.
Key Features
- 28-Spline Design – Matches OEM specifications for seamless integration and full power handling.
- 30.5-Inch Length – Exact dimension for passenger-side fit in GM 8.5-inch rear ends.
- 1.500-Inch Bearing Journal – Ensures proper seating and alignment in factory housings.
- Heat-Treated Alloy Steel – Provides strength to withstand torque and heat from performance driving.
- Direct Replacement – No modifications needed for quick installation in compatible GM models.
- Precision Machined – Minimizes vibrations and maximizes driveline efficiency.
Specifications
| Detail | Value |
|---|---|
| Brand | USA Standard Gear |
| Type | Passenger Side Axle Shaft |
| Compatibility | GM 8.5" 10-Bolt Rear 28-Spline |
| Spline Count | 28 |
| Overall Length | 30.5 inches |
| Bearing Journal Diameter | 1.500 inches |
| Weight | 22 lbs |
| Shipping Box Dimensions | 36 x 8 x 8 inches |
| Country of Origin | China |
| Warranty | Limited Lifetime |
Whats Included
- 1 x USA Standard Gear ZA G551818 Passenger Side Axle Shaft
Product Notes
- Special order item, allow extra time for processing
- Confirm your vehicle's rear axle is 8.5-inch 28-spline before purchase
- Professional installation recommended for optimal safety and performance
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 1978-1983 | Buick | Regal | Base |
| 1982-1983 | Buick | Regal | Estate Wagon |
| 1978-1983 | Buick | Regal | Limited |
| 1982 | Buick | Regal | Limited Turbo |
| 1978-1982 | Buick | Regal | Sport |
| 1983 | Buick | Regal | T-Type |
| 1977-1987 | Chevrolet | El Camino | Base |
| 1977 | Chevrolet | El Camino | Classic |
| 1977-1978,1981-1986 | Chevrolet | El Camino | Conquista |
| 1979-1981 | Chevrolet | El Camino | Royal Knight |
| 1977-1987 | Chevrolet | El Camino | SS |
| 1978-1981 | Chevrolet | Malibu | Base |
| 1978-1983 | Chevrolet | Malibu | Classic |
| 1978-1980 | Chevrolet | Malibu | Classic Estate |
| 1978-1981 | Chevrolet | Malibu | Classic Landau |
| 1979-1980 | Chevrolet | Malibu | Classic Sport |
| 1979-1980 | Chevrolet | Malibu | Estate |
| 1979 | Chevrolet | Malibu | Landau |
| 1979 | Chevrolet | Malibu | Police |
| 1979-1980 | Chevrolet | Malibu | Sport |
| 1979,1981-1988 | Chevrolet | Monte Carlo | Base |
| 1983 | Chevrolet | Monte Carlo | CL |
| 1978-1981 | Chevrolet | Monte Carlo | Landau |
| 1986-1988 | Chevrolet | Monte Carlo | LS |
| 1978,1980 | Chevrolet | Monte Carlo | Sport |
| 1983-1988 | Chevrolet | Monte Carlo | SS |
| 1987 | Oldsmobile | Cutlass Supreme | 442 |
| 1986-1987 | Oldsmobile | Cutlass Supreme | Base |
| 1986-1987 | Oldsmobile | Cutlass Supreme | Brougham |
| 1988 | Oldsmobile | Cutlass Supreme | Classic |
| 1988 | Oldsmobile | Cutlass Supreme | Classic Brougham |
| 1986 | Pontiac | Bonneville | Base |
| 1986 | Pontiac | Bonneville | Brougham |
| 1986 | Pontiac | Bonneville | LE |
Why Choose USA Standard Gear?
- Proven durability in high-torque GM applications
- Exact OEM-spec dimensions for bolt-in installation
- Heat-treated construction resists wear and fatigue
- Backed by limited lifetime warranty for peace of mind
Frequently Asked Questions
- Q: Is this axle shaft for the left or right side?
- A: This is the passenger-side (right) axle shaft for GM 8.5-inch rears.
- Q: Will it fit my 1986 Monte Carlo SS?
- A: Yes, it fits 1983-1988 Chevrolet Monte Carlo SS with 28-spline 8.5-inch axle.
- Q: What spline count does it have?
- A: 28 splines, matching factory GM 10-bolt 8.5-inch differentials.
Shipping & Handling
- Method: UPS Ground / FedEx Ground
- Availability: Special order – ships within 2-3 business days
- Packaging: Securely boxed to prevent damage during transit
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