QA1 78-88 GM G-Body/73-77 A-Body Upper Adjustable Trailing Arms

Upper adjustable trailing arms for 78-88 GM G-bodies. Includes graphite/polyurethane bushings. All upper tubular and lower boxed trailing arms use polyurethane bushings on both ends, while upper adjustable and lower tubular trailing arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. This keeps the tires planted firmly on the ground for improved traction and a more predictable, better handling car. For a long-lasting finish, tubular and boxed trailing arms are powder-coated gloss black, while the adjustable arms are zinc plated and anodized. Boxed Trailing Arms are constructed from 0.120'' wall cold rolled steel tubing for maximum strength and flex elimination. These trailing arms have fluted, greasable polyurethane bushings, which are superior to the stock rubber bushings. Tubular Trailing Arms are constructed from 1-1/4'' diameter, 0.120'' wall steel tubing which offers increased strength over other designs, but also have the added advantage of lighter weight. These trailing arms have fluted, greasable polyurethane bushings, which are superior to the stock rubber bushings. Heavy-Duty Adjustable Trailing Arms allow easy rear suspension adjustments for optimum handling and traction. Simply loosen the jam nuts and adjust the pinion angle without removing the arms from the vehicle. They replace soft OE differential bushings with polyurethane differential bushings, and they use a spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end to allow the rear suspension to move more freely and eliminate bushing bind. All parts sold in pairs.

• Adjustable arms offer easy wheelbase and pinion angle adjustment
• Direct fit options for many popular GM, Ford & Mopars
• Easy, bolt-in install
• Made in the USA

Upgrade your vehicle's suspension with the QA1 Part Number qap5247 upper adjustable trailing arms, designed specifically for 78-88 GM G-Body models and compatible with 73-77 A-Body Pontiac vehicles. Constructed from durable 1-1/4 inch diameter, 0.120 inch wall steel tubing, these trailing arms provide increased strength and reduced weight for superior handling and control. The powder-coated gloss black finish on boxed trailing arms and zinc-plated, anodized finish on adjustable arms ensure long-lasting corrosion resistance and a sleek appearance.

The adjustable feature allows for quick and easy modifications to wheelbase and pinion angle, with simple bolt-in installation that does not require removal of the arms from the vehicle. The spherical ball or rod end assemblies on the chassis end eliminate bushing bind, resulting in smoother suspension movement and better traction. Polyurethane bushings on both ends, including fluted, greasable polyurethane bushings, outperform stock rubber bushings by providing a more precise and responsive ride.

These trailing arms are designed for improved durability and performance, replacing soft OE differential bushings with polyurethane ones and utilizing UHMW polyethylene bushings at the chassis end for enhanced suspension articulation. They are ideal for enthusiasts seeking to improve handling, stability, and overall vehicle performance. All parts are sold as a pair for straightforward installation and optimal results. Made in the USA, these QA1 trailing arms are a reliable upgrade for classic muscle cars and performance-oriented street vehicles alike.

Features:

• Adjustable arms offer easy wheelbase and pinion angle adjustment

• Direct fit options for many popular GM, Ford & Mopar vehicles

• Easy bolt-in installation for quick upgrades

• Constructed from high-strength steel tubing for maximum durability

• Powder-coated and zinc-plated finishes for corrosion resistance

• Polyurethane bushings provide improved suspension performance

• Includes spherical ball or rod end assemblies to eliminate bushing bind

• Sold in pairs for complete suspension upgrade

• Made in the USA for quality assurance

Fitment:
Buick Century Base 1973
Buick Century Base 1974
Buick Century Base 1975
Buick Century Base 1976
Buick Century Base 1977
Buick Century Base 1980
Buick Century Base 1981
Buick Century Custom 1975
Buick Century Custom 1976
Buick Century Custom 1977
Buick Century Custom 1978
Buick Century Custom 1979
Buick Century Custom 1982
Buick Century Custom 1983
Buick Century Custom 1984
Buick Century Custom 1985
Buick Century Custom 1986
Buick Century Custom 1987
Buick Century Custom 1988
Buick Century Estate 1980
Buick Century Estate 1981
Buick Century Estate 1984
Buick Century Estate Wagon 1985
Buick Century Estate Wagon 1986
Buick Century Estate Wagon 1987
Buick Century Estate Wagon 1988
Buick Century Indianapolis 500 Pace Car 1976
Buick Century Limited 1978
Buick Century Limited 1979
Buick Century Limited 1980
Buick Century Limited 1981
Buick Century Limited 1982
Buick Century Limited 1983
Buick Century Limited 1984
Buick Century Limited 1985
Buick Century Limited 1986
Buick Century Limited 1987
Buick Century Limited 1988
Buick Century Luxus 1973
Buick Century Luxus 1974
Buick Century Luxus 1975
Buick Century Olympia Limited 1984
Buick Century Special 1975
Buick Century Special 1976
Buick Century Special 1977
Buick Century Special 1978
Buick Century Special 1979
Buick Century Sport 1978
Buick Century Sport 1979
Buick Century Sport 1980
Buick Century Sport 1981
Buick Century T-Type 1983
Buick Century T-Type 1984
Buick Century T-Type 1985
Buick Century T-Type 1986
Buick Regal Base 1973
Buick Regal Base 1974
Buick Regal Base 1975
Buick Regal Base 1976
Buick Regal Base 1977
Buick Regal Base 1978
Buick Regal Base 1979
Buick Regal Base 1980
Buick Regal Base 1981
Buick Regal Base 1982
Buick Regal Base 1983
Buick Regal Base 1984
Buick Regal Base 1985
Buick Regal Base 1986
Buick Regal Base 1987
Buick Regal Custom 1988
Buick Regal Estate Wagon 1982
Buick Regal Estate Wagon 1983
Buick Regal GNX 1987
Buick Regal Grand National 1984
Buick Regal Grand National 1985
Buick Regal Grand National 1986
Buick Regal Grand National 1987
Buick Regal Limited 1978
Buick Regal Limited 1979
Buick Regal Limited 1980
Buick Regal Limited 1981
Buick Regal Limited 1982
Buick Regal Limited 1983
Buick Regal Limited 1984
Buick Regal Limited 1985
Buick Regal Limited 1986
Buick Regal Limited 1987
Buick Regal Limited 1988
Buick Regal Limited Turbo 1982
Buick Regal Sport 1978
Buick Regal Sport 1979
Buick Regal Sport 1980
Buick Regal Sport 1981
Buick Regal Sport 1982
Buick Regal SR 1976
Buick Regal SR 1977
Buick Regal T-Type 1983
Buick Regal T-Type 1984
Buick Regal T-Type 1985
Buick Regal T-Type 1986
Chevrolet Chevelle Deluxe 1973
Chevrolet El Camino Base 1973
Chevrolet El Camino Base 1974
Chevrolet El Camino Base 1975
Chevrolet El Camino Base 1976
Chevrolet El Camino Base 1977
Chevrolet El Camino Base 1978
Chevrolet El Camino Base 1979
Chevrolet El Camino Base 1980
Chevrolet El Camino Base 1981
Chevrolet El Camino Base 1982
Chevrolet El Camino Base 1983
Chevrolet El Camino Base 1984
Chevrolet El Camino Base 1985
Chevrolet El Camino Base 1986
Chevrolet El Camino Base 1987
Chevrolet El Camino Classic 1975
Chevrolet El Camino Classic 1976
Chevrolet El Camino Classic 1977
Chevrolet El Camino Conquista 1977
Chevrolet El Camino Conquista 1978
Chevrolet El Camino Conquista 1981
Chevrolet El Camino Conquista 1982
Chevrolet El Camino Conquista 1983
Chevrolet El Camino Conquista 1984
Chevrolet El Camino Conquista 1985
Chevrolet El Camino Conquista 1986
Chevrolet El Camino Custom 1973
Chevrolet El Camino Custom 1974
Chevrolet El Camino Royal Knight 1979
Chevrolet El Camino Royal Knight 1980
Chevrolet El Camino Royal Knight 1981
Chevrolet El Camino SS 1973
Chevrolet El Camino SS 1974
Chevrolet El Camino SS 1975
Chevrolet El Camino SS 1976
Chevrolet El Camino SS 1977
Chevrolet El Camino SS 1978
Chevrolet El Camino SS 1979
Chevrolet El Camino SS 1980
Chevrolet El Camino SS 1981
Chevrolet El Camino SS 1982
Chevrolet El Camino SS 1983
Chevrolet El Camino SS 1984
Chevrolet El Camino SS 1985
Chevrolet El Camino SS 1986
Chevrolet El Camino SS 1987
Chevrolet Malibu Base 1978
Chevrolet Malibu Base 1979
Chevrolet Malibu Base 1980
Chevrolet Malibu Base 1981
Chevrolet Malibu Classic 1978
Chevrolet Malibu Classic 1979
Chevrolet Malibu Classic 1980
Chevrolet Malibu Classic 1981
Chevrolet Malibu Classic 1982
Chevrolet Malibu Classic Estate 1978
Chevrolet Malibu Classic Estate 1979
Chevrolet Malibu Classic Estate 1980
Chevrolet Malibu Classic Landau 1978
Chevrolet Malibu Classic Landau 1979
Chevrolet Malibu Classic Landau 1980
Chevrolet Malibu Classic Landau 1981
Chevrolet Malibu Classic Sport 1979
Chevrolet Malibu Classic Sport 1980
Chevrolet Malibu Estate 1979
Chevrolet Malibu Estate 1980
Chevrolet Malibu Landau 1979
Chevrolet Malibu Police 1979
Chevrolet Malibu Sport 1979
Chevrolet Malibu Sport 1980
Chevrolet Monte Carlo Base 1973
Chevrolet Monte Carlo Base 1974
Chevrolet Monte Carlo Base 1979
Chevrolet Monte Carlo Base 1981
Chevrolet Monte Carlo Base 1982
Chevrolet Monte Carlo Base 1983
Chevrolet Monte Carlo Base 1984
Chevrolet Monte Carlo Base 1985
Chevrolet Monte Carlo Base 1986
Chevrolet Monte Carlo Base 1987
Chevrolet Monte Carlo Base 1988
Chevrolet Monte Carlo CL 1983
Chevrolet Monte Carlo Landau 1973
Chevrolet Monte Carlo Landau 1974
Chevrolet Monte Carlo Landau 1976
Chevrolet Monte Carlo Landau 1978
Chevrolet Monte Carlo Landau 1979
Chevrolet Monte Carlo Landau 1980
Chevrolet Monte Carlo Landau 1981
Chevrolet Monte Carlo LS 1986
Chevrolet Monte Carlo LS 1987
Chevrolet Monte Carlo LS 1988
Chevrolet Monte Carlo S 1973
Chevrolet Monte Carlo S 1975
Chevrolet Monte Carlo S 1976
Chevrolet Monte Carlo S 1977
Chevrolet Monte Carlo Sport 1978
Chevrolet Monte Carlo Sport 1980
Chevrolet Monte Carlo SS 1983
Chevrolet Monte Carlo SS 1984
Chevrolet Monte Carlo SS 1985
Chevrolet Monte Carlo SS 1986
Chevrolet Monte Carlo SS 1987
Chevrolet Monte Carlo SS 1988
GMC Caballero Amarillo 1981
GMC Caballero Amarillo 1982
GMC Caballero Amarillo 1983
GMC Caballero Amarillo 1984
GMC Caballero Amarillo 1985
GMC Caballero Amarillo 1986
GMC Caballero Base 1981
GMC Caballero Base 1982
GMC Caballero Base 1983
GMC Caballero Base 1984
GMC Caballero Base 1985
GMC Caballero Base 1986
GMC Caballero Base 1987
GMC Caballero Conquista 1981
GMC Caballero Diablo 1981
GMC Caballero Diablo 1982
GMC Caballero Diablo 1983
GMC Caballero Diablo 1984
GMC Caballero Diablo 1985
GMC Caballero Diablo 1986
GMC Caballero Diablo 1987
GMC Caballero Royal Knight 1981
GMC Sprint Base 1973
GMC Sprint Base 1974
GMC Sprint Base 1975
GMC Sprint Base 1976
GMC Sprint Base 1977
GMC Sprint Classic 1975
GMC Sprint Classic 1976
GMC Sprint Classic 1977
GMC Sprint Custom 1973
GMC Sprint Custom 1974
GMC Sprint High Sierra 1975
GMC Sprint Sierra Madre Del Sur 1976
GMC Sprint SP 1975
GMC Sprint SP 1976
Oldsmobile Cutlass 442 1975
Oldsmobile Cutlass 442 1977
Oldsmobile Cutlass Base 1973
Oldsmobile Cutlass Base 1974
Oldsmobile Cutlass Base 1975
Oldsmobile Cutlass Base 1980
Oldsmobile Cutlass Brougham 1980
Oldsmobile Cutlass Brougham 1981
Oldsmobile Cutlass Colonnade 1977
Oldsmobile Cutlass Colonnade S 1976
Oldsmobile Cutlass Colonnade S 1977
Oldsmobile Cutlass LS 1980
Oldsmobile Cutlass LS 1981
Oldsmobile Cutlass S 1973
Oldsmobile Cutlass S 1974
Oldsmobile Cutlass S 1975
Oldsmobile Cutlass S 1976
Oldsmobile Cutlass S 1977
Oldsmobile Cutlass Vista Cruiser 1976
Oldsmobile Cutlass Vista Cruiser 1977
Oldsmobile Cutlass Vista Cruiser 1978
Oldsmobile Cutlass Vista Cruiser 1979
Oldsmobile Cutlass Vista Cruiser Brougham 1979
Oldsmobile Cutlass Supreme Base 1973
Oldsmobile Cutlass Supreme Base 1974
Oldsmobile Cutlass Supreme Base 1975
Oldsmobile Cutlass Supreme Base 1976
Oldsmobile Cutlass Supreme Base 1977
Oldsmobile Cutlass Supreme Base 1978
Oldsmobile Cutlass Supreme Base 1979
Oldsmobile Cutlass Supreme Base 1980
Oldsmobile Cutlass Supreme Base 1981
Oldsmobile Cutlass Supreme Brougham 1977
Oldsmobile Cutlass Supreme Brougham 1978
Oldsmobile Cutlass Supreme Brougham 1979
Oldsmobile Cutlass Supreme Brougham 1980
Oldsmobile Cutlass Supreme Brougham 1981
Oldsmobile Cutlass Supreme Colonnade 1976
Oldsmobile Cutlass Supreme Colonnade 1977
Oldsmobile Cutlass Supreme Cruiser 1974
Oldsmobile Cutlass Supreme Cruiser 1975
Oldsmobile Cutlass Supreme Hurst 1975
Oldsmobile Cutlass Supreme LS 1981
Pontiac Bonneville Base 1978
Pontiac Bonneville Base 1979
Pontiac Bonneville Base 1980
Pontiac Bonneville Base 1981
Pontiac Bonneville Base 1982
Pontiac Bonneville Base 1983
Pontiac Bonneville Base 1984
Pontiac Bonneville Base 1985
Pontiac Bonneville Base 1986
Pontiac Bonneville Base 1987
Pontiac Bonneville Brougham 1978
Pontiac Bonneville Brougham 1979
Pontiac Bonneville Brougham 1980
Pontiac Bonneville Brougham 1981
Pontiac Bonneville Brougham 1982
Pontiac Bonneville Brougham 1983
Pontiac Bonneville Brougham 1984
Pontiac Bonneville Brougham 1985
Pontiac Bonneville Brougham 1986
Pontiac Bonneville LE 1984
Pontiac Bonneville LE 1985
Pontiac Bonneville LE 1986
Pontiac Bonneville LE 1987
Pontiac Bonneville Safari 1978
Pontiac Bonneville Safari 1979
Pontiac Bonneville Safari 1980
Pontiac Bonneville Safari 1981
Pontiac Grand Am Base 1973
Pontiac Grand Am Base 1974
Pontiac Grand Am Base 1975
Pontiac Grand Am Base 1978
Pontiac Grand Am Base 1979
Pontiac Grand Am Base 1980
Pontiac Grand Prix Base 1973
Pontiac Grand Prix Base 1974
Pontiac Grand Prix Base 1976
Pontiac Grand Prix Base 1977
Pontiac Grand Prix Base 1978
Pontiac Grand Prix Base 1979
Pontiac Grand Prix Base 1980
Pontiac Grand Prix Base 1981
Pontiac Grand Prix Base 1982
Pontiac Grand Prix Base 1983
Pontiac Grand Prix Base 1984
Pontiac Grand Prix Base 1985
Pontiac Grand Prix Base 1986
Pontiac Grand Prix Base 1987
Pontiac Grand Prix Brougham 1981
Pontiac Grand Prix Brougham 1982
Pontiac Grand Prix Brougham 1983
Pontiac Grand Prix Brougham 1984
Pontiac Grand Prix Brougham 1985
Pontiac Grand Prix Brougham 1986
Pontiac Grand Prix Brougham 1987
Pontiac Grand Prix LE 1984
Pontiac Grand Prix LE 1985
Pontiac Grand Prix LE 1986
Pontiac Grand Prix LE 1987
Pontiac Grand Prix LJ 1975
Pontiac Grand Prix LJ 1977
Pontiac Grand Prix LJ 1978
Pontiac Grand Prix LJ 1979
Pontiac Grand Prix LJ 1980
Pontiac Grand Prix LJ 1981
Pontiac Grand Prix LJ 1982
Pontiac Grand Prix LJ 1983
Pontiac Grand Prix SJ 1975
Pontiac Grand Prix SJ 1976
Pontiac Grand Prix SJ 1977
Pontiac Grand Prix SJ 1978
Pontiac Grand Prix SJ 1979
Pontiac Grand Prix SJ 1980
Pontiac LeMans Base 1973
Pontiac LeMans Base 1974
Pontiac LeMans Base 1975
Pontiac LeMans Base 1976
Pontiac LeMans Base 1977
Pontiac LeMans Base 1978
Pontiac LeMans Base 1979
Pontiac LeMans Base 1980
Pontiac LeMans Base 1981
Pontiac LeMans Luxury 1973
Pontiac LeMans Luxury 1974
Pontiac LeMans Safari 1973
Pontiac LeMans Safari 1974
Pontiac LeMans Safari 1975
Pontiac LeMans Safari 1977
Pontiac LeMans Safari 1978
Pontiac LeMans Safari 1979
Pontiac LeMans Safari 1980
Pontiac LeMans Safari 1981
Pontiac LeMans Safari Luxury 1974
Pontiac LeMans Sport 1973
Pontiac LeMans Sport 1974
Pontiac LeMans Sport 1975
Pontiac LeMans Sport 1976
Pontiac LeMans Sport 1977