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QA1 79-04 Ford Mustang Upper Adjustable Trailing Arms

Upper adjustable trailing arms for 79-04 Mustang. 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. Trailing arms are powder-coated gloss black for a long lasting finish. 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 has 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. Adjustable Tubular Lower Trailing Arms are offered in both aluminum and steel. These arms are the ultimate in weight savings and adjustability, and they feature QA1's premium self-sealing and self-lubricating X Series (heat treated chromoly steel) or A Series (aircraft aluminum) rod ends. Kits include (2) lower control arms with rod ends and jam nuts. 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 the rear suspension of your 1979-2004 Ford Mustang with QA1 QAP5255 upper adjustable trailing arms. Designed for improved traction, control, and handling, these arms help keep the tires firmly planted while allowing smoother suspension movement. The adjustable design lets you fine-tune wheelbase and pinion angle without removing the arms from the vehicle, making suspension setup and adjustments more convenient for street, strip, and performance applications.
Constructed from strong tubular steel and finished with a durable gloss-black powder coating, these trailing arms are engineered for long-lasting performance. Greasable polyurethane bushings provide a firmer, more responsive alternative to soft factory rubber bushings, while the spherical ball or rod-end assembly at the chassis connection helps reduce bushing bind. The design also replaces the original differential bushings with polyurethane components for improved suspension control and more predictable handling.
QA1 QAP5255 trailing arms are designed for a direct-fit, bolt-in installation and are sold as a pair. They are manufactured in the USA and provide a practical solution for Mustang owners seeking improved rear suspension geometry, traction, and adjustability. Professional installation and an alignment check are recommended after installation. This product may contain chemicals known to the State of California to cause cancer or reproductive harm.

Features:

  • Adjustable design allows easy wheelbase and pinion angle adjustment
  • Tubular steel construction provides increased strength with reduced weight
  • Greasable polyurethane bushings improve control over factory rubber bushings
  • Spherical ball or rod-end chassis connection helps eliminate bushing bind
  • Polyurethane differential bushings improve rear suspension response
  • Gloss-black powder-coated finish provides durable corrosion resistance
  • Direct-fit, bolt-in installation for compatible 1979-2004 Ford Mustang applications
  • Sold as a pair
  • Made in the USA

Fitment:
Ford Mustang Base 1979
Ford Mustang Base 1980
Ford Mustang Base 1981
Ford Mustang Base 1994
Ford Mustang Base 1995
Ford Mustang Base 1996
Ford Mustang Base 1997
Ford Mustang Base 1998
Ford Mustang Base 1999
Ford Mustang Base 2000
Ford Mustang Base 2001
Ford Mustang Base 2002
Ford Mustang Base 2003
Ford Mustang Base 2004
Ford Mustang Cobra 1981
Ford Mustang Ghia 1979
Ford Mustang Ghia 1980
Ford Mustang Ghia 1981
Ford Mustang GL 1982
Ford Mustang GL 1983
Ford Mustang GLX 1982
Ford Mustang GLX 1983
Ford Mustang GT 1982
Ford Mustang GT 1983
Ford Mustang GT 1984
Ford Mustang GT 1985
Ford Mustang GT 1986
Ford Mustang GT 1987
Ford Mustang GT 1988
Ford Mustang GT 1989
Ford Mustang GT 1990
Ford Mustang GT 1991
Ford Mustang GT 1992
Ford Mustang GT 1993
Ford Mustang GT 1994
Ford Mustang GT 1995
Ford Mustang GT 1996
Ford Mustang GT 1997
Ford Mustang GT 1998
Ford Mustang GT 1999
Ford Mustang GT 2000
Ford Mustang GT 2001
Ford Mustang GT 2002
Ford Mustang GT 2003
Ford Mustang GT 2004
Ford Mustang GT Bullitt 2001
Ford Mustang GT-350 20th Anniversary 1984
Ford Mustang GTS 1995
Ford Mustang L 1982
Ford Mustang L 1983
Ford Mustang L 1984
Ford Mustang LX 1984
Ford Mustang LX 1985
Ford Mustang LX 1986
Ford Mustang LX 1987
Ford Mustang LX 1988
Ford Mustang LX 1989
Ford Mustang LX 1990
Ford Mustang LX 1991
Ford Mustang LX 1992
Ford Mustang LX 1993
Ford Mustang Mach 1 2003
Ford Mustang Mach 1 2004
Ford Mustang SVO 1984
Ford Mustang SVO 1985
Ford Mustang SVO 1986
Ford Mustang SVT Cobra 1993
Ford Mustang SVT Cobra 1994
Ford Mustang SVT Cobra 1995
Ford Mustang SVT Cobra 1996
Ford Mustang SVT Cobra 1997
Ford Mustang SVT Cobra 1998
Ford Mustang SVT Cobra 1999
Ford Mustang SVT Cobra 2001
Ford Mustang SVT Cobra 2003
Ford Mustang SVT Cobra 2004
Ford Mustang SVT Cobra 10th Anniversary 2003
Ford Mustang SVT Cobra R 1993
Ford Mustang SVT Cobra R 1995
Ford Mustang SVT Cobra R 2000
Ford Mustang Turbo GT 1983
Mercury Capri 5.0 1986
Mercury Capri Base 1979
Mercury Capri Base 1980
Mercury Capri Base 1981
Mercury Capri Base 1982
Mercury Capri Base 1983
Mercury Capri Black Magic 1982
Mercury Capri Black Magic 1983
Mercury Capri Crimson Cat 1983
Mercury Capri Ghia 1979
Mercury Capri Ghia 1980
Mercury Capri GS 1981
Mercury Capri GS 1982
Mercury Capri GS 1983
Mercury Capri GS 1984
Mercury Capri GS 1985
Mercury Capri GS 1986
Mercury Capri L 1982
Mercury Capri L 1983
Mercury Capri RS 1982
Mercury Capri RS 1983
Mercury Capri RS 1984
Mercury Capri RS 1985
Mercury Capri RS Turbo 1984