QA1 upper adjustable tubular trailing arms are a heavy-duty rear suspension upgrade for 1965-1967 GM B-Body vehicles. They allow pinion angle to be adjusted by loosening the jam nuts without removing the arms from the vehicle. A spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end eliminates bind for smoother suspension movement, and the arms replace the soft OE differential bushings with polyurethane. The adjustable arms carry a zinc-plated and anodized finish.
Specifications:
- Upper adjustable rear trailing arms
- Pinion angle adjusts by loosening the jam nuts without removing the arms
- Spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end to eliminate bind
- Replace soft OE differential bushings with polyurethane
- Zinc-plated and anodized finish
- Part number: 5297
Vehicle Applications:
- 1965 Chevrolet Biscayne
- 1966 Chevrolet Biscayne
- 1967 Chevrolet Biscayne
- 1965 Chevrolet Impala
- 1966 Chevrolet Impala
- 1967 Chevrolet Impala
FAQ
Can pinion angle be adjusted with these installed?
Yes. Loosen the jam nuts to adjust pinion angle without removing the arms from the vehicle.
What is on the chassis end of these arms?
A spherical ball or rod end assembly with UHMW polyethylene bushings, which eliminates bind for smoother suspension movement.
Do these replace the differential bushings?
Yes. They replace the soft OE differential bushings with polyurethane.
What finish do the adjustable arms have?
The adjustable trailing arms are zinc plated and anodized.

