The QA1 5248 upper adjustable trailing arms allow easy rear suspension adjustment for 1968-1972 GM A-body cars. The pinion angle is set by loosening the jam nuts and turning the arm without removing it from the vehicle. They replace the soft OE differential bushings with polyurethane and use a spherical ball or rod end with UHMW polyethylene bushings on the chassis end to let the suspension move freely and eliminate bushing bind. The adjustable arms are zinc plated and anodized and are sold in pairs.
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 ball or rod end with UHMW polyethylene bushings
- Finish: zinc plated and anodized
- Made in the USA
- Part number: 5248
Vehicle Applications:
- 1968 Buick Skylark
- 1969 Buick Skylark
- 1970 Buick Skylark
- 1971 Buick Skylark
- 1972 Buick Skylark
- 1968 Buick Special
- 1969 Buick Special
- 1968 Chevrolet Chevelle
- 1969 Chevrolet Chevelle
- 1970 Chevrolet Chevelle
- 1971 Chevrolet Chevelle
- 1972 Chevrolet Chevelle
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
- 1970 Chevrolet Monte Carlo
- 1971 Chevrolet Monte Carlo
- 1972 Chevrolet Monte Carlo
- 1971 GMC Sprint
- 1972 GMC Sprint
- 1968 Oldsmobile 442
- 1969 Oldsmobile 442
- 1970 Oldsmobile 442
- 1971 Oldsmobile 442
- 1968 Oldsmobile Cutlass
- 1969 Oldsmobile Cutlass
- 1970 Oldsmobile Cutlass
- 1971 Oldsmobile Cutlass
- 1972 Oldsmobile Cutlass
- 1968 Oldsmobile Vista Cruiser
- 1969 Oldsmobile Vista Cruiser
- 1970 Oldsmobile Vista Cruiser
- 1971 Oldsmobile Vista Cruiser
- 1972 Oldsmobile Vista Cruiser
- 1968 Pontiac GTO
- 1969 Pontiac GTO
- 1970 Pontiac GTO
- 1971 Pontiac GTO
- 1972 Pontiac GTO
- 1969 Pontiac Grand Prix
- 1970 Pontiac Grand Prix
- 1971 Pontiac Grand Prix
- 1972 Pontiac Grand Prix
- 1968 Pontiac LeMans
- 1969 Pontiac LeMans
- 1970 Pontiac LeMans
- 1971 Pontiac LeMans
- 1972 Pontiac LeMans
- 1968 Pontiac Tempest
- 1969 Pontiac Tempest
- 1970 Pontiac Tempest
FAQ
What does the QA1 5248 trailing arm kit include?
The kit includes two upper adjustable trailing arms with jam nuts, sold as a pair.
How are these trailing arms adjusted?
The pinion angle is set by loosening the jam nuts and turning the arm, which can be done without removing the arm from the vehicle.
What bushings do they use?
They use polyurethane bushings on the differential end and a spherical ball or rod end with UHMW polyethylene bushings on the chassis end to eliminate bushing bind.
What vehicles does the 5248 kit fit?
They fit 1968-1972 GM A-body cars including the Chevelle, El Camino, Monte Carlo, GTO, LeMans, Tempest, Cutlass, 442, Skylark and Vista Cruiser.

