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QA1 1-3/8 inch front sway bar for 1978-1996 GM B-Body cars
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QA1 52862 Front Sway Bar – 1977-1996 GM B-Body – Chevrolet Caprice / Impala / Buick LeSabre / Roadmaster / Oldsmobile Delta 88 / Pontiac Bonneville – 1-3/8 in. 4130 Chromoly

QA1
QAP52862
806990147356
Sway Bars
Out of stock
$ 402.09 $ 344.00

QA1 52862 is the 1-3/8-inch tubular front sway bar engineered for 1977–1996 GM B-Body vehicles including the Chevrolet Caprice, Chevrolet Impala, Buick LeSabre, Buick Roadmaster, Oldsmobile Delta 88, Pontiac Bonneville, Pontiac Catalina, Pontiac Laurentian, and Pontiac Parisienne. Manufactured from hollow 4130 chromoly steel with a 3/16-inch wall and CNC-bent tubing, part number 52862 delivers a significant reduction in body roll without the weight penalty of a solid bar. Polyurethane bushings and plated mounting hardware are included. Installs in factory mounting locations. Backed by QA1's 1-year warranty.

QA1 52862 — At a Glance

Specification Detail
Part Number 52862
Position Front
Bar Diameter 1-3/8 in. (1.375 in.)
Wall Thickness 3/16 in.
Construction Hollow — CNC-bent, machined and welded bar ends
Material 4130 Chromoly Steel
Finish Powder-Coat
Bushings Polyurethane — included
Mounting Hardware Plated hardware — included
Installation Factory mounting locations
Warranty 1 Year Against Product Defects

Why the 52862 Outperforms the Factory Bar

The factory sway bars on B-Body GM vehicles were sized for comfort-biased suspension tuning acceptable for cruising, inadequate for anything resembling spirited driving or autocross. The QA1 52862 is tuned specifically for this platform, with the 1-3/8-inch diameter and 3/16-inch wall thickness calculated to deliver the torsional stiffness needed for genuine handling improvement without being so stiff that it makes the car harsh on imperfect pavement.

The hollow 4130 chromoly construction is the key advantage over solid OEM-style bars. Chromoly has a higher strength-to-weight ratio than mild steel, so QA1 can achieve greater stiffness at a lower overall weight. The result is a bar that reduces body roll measurably distributing weight more evenly across all four tire contact patches in corners while adding less unsprung weight than a heavier solid replacement would. CNC-bent tubing ensures consistent geometry across every bar, and the machined and welded bar ends eliminate the flex points that reduce the effective stiffness of simple bent-tube designs.

What's Included with the QA1 52862

  • 1-3/8 in. hollow 4130 chromoly front sway bar
  • Polyurethane bushings
  • Plated mounting hardware
  • End links where applicable

Vehicle Fitment — Chevrolet

Year Make Model
1977 Chevrolet Caprice
1978 Chevrolet Caprice
1979 Chevrolet Caprice
1980 Chevrolet Caprice
1981 Chevrolet Caprice
1982 Chevrolet Caprice
1983 Chevrolet Caprice
1984 Chevrolet Caprice
1985 Chevrolet Caprice
1986 Chevrolet Caprice
1987 Chevrolet Caprice
1988 Chevrolet Caprice
1989 Chevrolet Caprice
1990 Chevrolet Caprice
1991 Chevrolet Caprice
1992 Chevrolet Caprice
1993 Chevrolet Caprice
1994 Chevrolet Caprice
1995 Chevrolet Caprice
1996 Chevrolet Caprice
1977 Chevrolet Impala
1978 Chevrolet Impala
1979 Chevrolet Impala
1980 Chevrolet Impala
1981 Chevrolet Impala
1982 Chevrolet Impala
1983 Chevrolet Impala
1984 Chevrolet Impala
1985 Chevrolet Impala
1994 Chevrolet Impala SS
1995 Chevrolet Impala SS
1996 Chevrolet Impala SS

Vehicle Fitment — Buick

Year Make Model
1977 Buick LeSabre
1978 Buick LeSabre
1979 Buick LeSabre
1980 Buick LeSabre
1981 Buick LeSabre
1982 Buick LeSabre
1983 Buick LeSabre
1984 Buick LeSabre
1985 Buick LeSabre
1991 Buick Roadmaster
1992 Buick Roadmaster
1993 Buick Roadmaster
1994 Buick Roadmaster
1995 Buick Roadmaster
1996 Buick Roadmaster

Vehicle Fitment — Oldsmobile

Year Make Model
1977 Oldsmobile Delta 88
1978 Oldsmobile Delta 88
1979 Oldsmobile Delta 88
1980 Oldsmobile Delta 88
1981 Oldsmobile Delta 88
1982 Oldsmobile Delta 88
1983 Oldsmobile Delta 88
1984 Oldsmobile Delta 88
1985 Oldsmobile Delta 88

Vehicle Fitment — Pontiac

Year Make Model
1977 Pontiac Bonneville
1978 Pontiac Bonneville
1979 Pontiac Bonneville
1980 Pontiac Bonneville
1981 Pontiac Bonneville
1982 Pontiac Bonneville
1983 Pontiac Bonneville
1984 Pontiac Bonneville
1985 Pontiac Bonneville
1986 Pontiac Bonneville
1987 Pontiac Bonneville
1977 Pontiac Catalina
1978 Pontiac Catalina
1979 Pontiac Catalina
1980 Pontiac Catalina
1981 Pontiac Catalina
1978 Pontiac Laurentian
1979 Pontiac Laurentian
1980 Pontiac Laurentian
1981 Pontiac Laurentian
1978 Pontiac Parisienne
1979 Pontiac Parisienne
1980 Pontiac Parisienne
1981 Pontiac Parisienne
1982 Pontiac Parisienne
1983 Pontiac Parisienne
1984 Pontiac Parisienne
1985 Pontiac Parisienne
1986 Pontiac Parisienne

Comparing QA1 52862 to Companion Part Numbers

The 52862 is the standalone front sway bar for the 1977–1996 GM B-Body platform. QA1 offers the following companion and related part numbers for the same and adjacent platforms:

Part Number Description
52862 Front Sway Bar, 78-96 GM B-Body ← this part
52894 Rear Sway Bar, 73-77 GM A-Body / 77-96 GM B-Body
52864 Front & Rear Sway Bar Kit, 78-96 GM B-Body (52862 + 52894 bundled)
52850 Front Sway Bar, 71-76 GM B-Body
52823 Front Sway Bar, 65-70 GM B-Body
52854 Front Sway Bar, 78-88 GM G-Body Big Wheel

If you want both front and rear on the 1977–1996 B-Body platform, consider the 52864 front and rear kit it pairs the 52862 front bar with the matching 52894 rear bar in a single purchase.

Frequently Asked Questions

What GM B-Body vehicles does the QA1 52862 fit?
The 52862 fits the Chevrolet Caprice (1977–1996), Chevrolet Impala (1977–1985, 1994–1996 SS), Buick LeSabre (1977–1985), Buick Roadmaster (1991–1996), Oldsmobile Delta 88 (1977–1985), Pontiac Bonneville (1977–1987), Pontiac Catalina (1977–1981), Pontiac Laurentian (1978–1981), and Pontiac Parisienne (1978–1986). It does not fit the Camaro, which is a GM F-Body on a different platform.

Does the QA1 52862 fit the Chevrolet Camaro?
No. The Camaro is a GM F-Body, not a B-Body. The 52862 is engineered exclusively for B-Body full-size GM cars. Camaro sway bars are a separate product line from QA1.

What is 4130 chromoly steel and why does QA1 use it?
4130 chromoly (chrome-molybdenum) steel has a significantly higher tensile strength than mild steel, allowing QA1 to use a hollow tube design that weighs less than a solid mild steel bar while actually being stiffer. The 1-3/8-inch diameter with a 3/16-inch wall is the result of QA1's application-specific tuning for the B-Body platform maximizing torsional stiffness where it matters while keeping unsprung weight low.

Does the QA1 52862 include bushings and hardware?
Yes. Every 52862 ships complete with polyurethane bushings and high-quality plated mounting hardware. No additional hardware kit is required for a standard installation.

Will the QA1 52862 work with the factory mounting locations?
Yes. The 52862 is designed to use the factory sway bar mounting locations on the B-Body chassis. No drilling, welding, or custom fabrication is required for installation.

What is the difference between the 52862 and the 52864?
The 52862 is the front sway bar only. The 52864 is a front and rear kit that pairs the 52862 front bar with the matching 52894 rear bar for the same 1977–1996 B-Body platform. If you plan to upgrade both ends, the 52864 kit is the more complete solution.

What year range does the 52862 actually cover?
QA1's product title references 78-96, but the fitment table begins in 1977 for several models including the Caprice, Impala, LeSabre, Delta 88, and Bonneville. Verify your exact year against the fitment tables above.

What warranty does the QA1 52862 carry?
QA1 backs the 52862 with a 1-year warranty against product defects.

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