SKU: 5234 | UPC: 806990174635
QA1 78-88 GM G-Body Trailing Arms Lower Adjustable
QA1 lower adjustable trailing arms center the rear axle precisely in the wheel well for 1978-1988 GM G-Body vehicles including Chevrolet Monte Carlo Buick Regal Pontiac Grand Prix Chevrolet Malibu El Camino GMC Caballero and Pontiac Bonneville. Gain up to 1 inch of adjustability to eliminate rubbing with 24-inch wheels and wide tires through simple turnbuckle lengthening or shortening. Tubular steel arms arrive black powder coated with all mounting hardware for direct bolt-on installation.
Key Features
- 1-Inch Adjustability: Turnbuckle-style adjustment repositions the rear axle inward or outward to clear large wheels and tires in the fender opening
- Powder Coated Finish: Black powder coat resists corrosion and holds up under road and track conditions for lasting appearance
- Bolt-On Design: Direct stock replacement with high-strength hardware for easy garage setup without fabrication
- Tubular Steel Construction: Lightweight strong tubing cuts unsprung weight and manages high-horsepower builds
- Wheel Fitment Solution: Centers axle to stop inner fender rubbing on lowered setups with oversized 24-inch wheels
Product Notes
- Pair of left and right lower trailing arms for complete rear installation
- Grease fittings on bushings for maintenance and smooth operation
- Ships in protective packaging weighing 21.9 lbs with dimensions 42 x 8 x 6 inches
Installation Notes
- Professional installation recommended.
- Bolts directly to factory rear control arm mounts using provided Grade 8 hardware
- Adjust pinion angle and perform four-wheel alignment after install for handling
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1981 | Chevrolet | Malibu | Base |
| 1978-1981 | Chevrolet | Malibu | Classic |
| 1978-1981 | Chevrolet | Malibu | Classic Landau |
| 1978-1980 | Chevrolet | Malibu | Classic Estate |
| 1979-1980 | Chevrolet | Malibu | Classic Sport |
| 1979-1980 | Chevrolet | Malibu | Estate |
| 1979 | Chevrolet | Malibu | Landau |
| 1979 | Chevrolet | Malibu | Police |
| 1979-1980 | Chevrolet | Malibu | Sport |
| 1978-1983 | Chevrolet | Malibu | Classic |
| 1982-1988 | Chevrolet | Monte Carlo | Base |
| 1983 | Chevrolet | Monte Carlo | CL |
| 1983-1988 | Chevrolet | Monte Carlo | SS |
| 1986-1988 | Chevrolet | Monte Carlo | LS |
| 1982-1987 | Chevrolet | El Camino | Base |
| 1982-1986 | Chevrolet | El Camino | Conquista |
| 1982-1987 | Chevrolet | El Camino | SS |
| 1981 | GMC | Caballero | Royal Knight |
| 1981-1986 | GMC | Caballero | Amarillo |
| 1981-1987 | GMC | Caballero | Base |
| 1981 | GMC | Caballero | Conquista |
| 1981-1987 | GMC | Caballero | Diablo |
| 1982-1987 | Buick | Regal | Base |
| 1982-1983 | Buick | Regal | Estate Wagon |
| 1987 | Buick | Regal | GNX |
| 1984-1987 | Buick | Regal | Grand National |
| 1982-1987 | Buick | Regal | Limited |
| 1982 | Buick | Regal | Limited Turbo |
| 1982 | Buick | Regal | Sport |
| 1983-1986 | Buick | Regal | T-Type |
| 1982-1987 | Pontiac | Bonneville | Base |
| 1982-1986 | Pontiac | Bonneville | Brougham |
| 1984-1987 | Pontiac | Bonneville | LE |
| 1982-1987 | Pontiac | Grand Prix | Base |
| 1982-1987 | Pontiac | Grand Prix | Brougham |
| 1984-1987 | Pontiac | Grand Prix | LE |
| 1982-1983 | Pontiac | Grand Prix | LJ |
Why Choose QA1?
- Decades of motorsports experience in drag racing and circle track
- High-strength materials tested for street and strip performance
- Precision manufacturing for exact fit and reliable adjustability
Frequently Asked Questions
- Q: What is the adjustment range on these trailing arms?
A: Up to 1 inch total adjustment centers rear axle 0.5 inch each direction for wheel and tire offset - Q: What material are QA1 trailing arms made from?
A: Heavy-duty tubular steel with polyurethane bushings and black powder coat finish - Q: Does QA1 offer a warranty on this part?
A: Yes, 1-year manufacturer warranty covers defects in materials and workmanship from purchase date
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Sturdy cardboard box measuring 42 x 8 x 6 inches
- Weight: 21.9 lbs





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