The QA1 Upper Adjustable Trailing Arms are a rear suspension upgrade for 1964-1967 GM A-body cars. The adjustable design lets the pinion angle be set by loosening the jam nuts and turning the arm without removing it from the vehicle, which makes dialing in rear geometry for handling and traction straightforward. They replace the soft OE differential bushings with polyurethane and use a spherical rod end with UHMW polyethylene bushings on the chassis end to let the rear suspension move freely and eliminate bushing bind. The arms are zinc plated and anodized and are sold as a pair.
Specifications:
- Type: upper adjustable trailing arms, sold in pairs
- Adjustment: pinion angle, set on the vehicle via jam nuts
- Differential end: polyurethane bushings
- Chassis end: spherical rod end with UHMW polyethylene bushings
- Finish: zinc plated and anodized
- Made in the USA
- Part number: 5249
Vehicle Applications:
- 1965 Buick Gran Sport
- 1966 Buick Gran Sport
- 1967 Buick Gran Sport
- 1964 Buick Skylark
- 1965 Buick Skylark
- 1966 Buick Skylark
- 1967 Buick Skylark
- 1964 Buick Special
- 1965 Buick Special
- 1966 Buick Special
- 1967 Buick Special
- 1964 Chevrolet Chevelle
- 1965 Chevrolet Chevelle
- 1966 Chevrolet Chevelle
- 1967 Chevrolet Chevelle
- 1964 Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1964 Oldsmobile 442
- 1965 Oldsmobile 442
- 1966 Oldsmobile 442
- 1967 Oldsmobile 442
- 1964 Oldsmobile Cutlass
- 1965 Oldsmobile Cutlass
- 1966 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass
- 1964 Oldsmobile Vista Cruiser
- 1965 Oldsmobile Vista Cruiser
- 1966 Oldsmobile Vista Cruiser
- 1967 Oldsmobile Vista Cruiser
- 1964 Pontiac GTO
- 1965 Pontiac GTO
- 1966 Pontiac GTO
- 1967 Pontiac GTO
- 1964 Pontiac LeMans
- 1965 Pontiac LeMans
- 1966 Pontiac LeMans
- 1967 Pontiac LeMans
- 1964 Pontiac Tempest
- 1965 Pontiac Tempest
- 1966 Pontiac Tempest
- 1967 Pontiac Tempest
FAQ
What vehicles do the QA1 5249 trailing arms fit?
They fit 1964-1967 GM A-body cars, including the Chevelle, El Camino, GTO, LeMans, Tempest, Skylark, Special, Gran Sport, 442, Cutlass, and Vista Cruiser.
What makes these arms adjustable?
The pinion angle can be adjusted by loosening the jam nuts and turning the arm without removing it from the vehicle.
What bushings do they use?
They use polyurethane bushings on the differential end and a spherical rod end with UHMW polyethylene bushings on the chassis end.
Are they sold individually or in pairs?
They are sold as a pair.
