QA1's unique torque arm design for 1973-1979 Ford F-100 trucks maximizes performance without the binding issues of other systems while achieving 4 to 7 inches of drop. The bolt-in system is highly adjustable, with the watts link, torque arm, trailing arms, bracket mounts, and shocks all adjustable. Single-adjustable shocks suit street-driven trucks that see occasional track time, allowing soft cruising or more aggressive valving with a turn of the knob. The compact watts link keeps the rear axle housing centered, prevents tire-to-bed rub, and clears rear-exiting exhaust. Adjustable lower trailing arms set the wheelbase for proper wheel and tire fitment. Parts arrive powder coated with all hardware. Made in the USA. This system fits short wheelbase trucks.
Specifications:
- Type: bolt-in rear coil-over suspension system with torque arm and watts link
- Shock valving: Single-Adjustable
- Spring rate: 200 lb high-travel springs
- Drop: 4 to 7 inches
- Wheelbase: short wheelbase
- Adjustable: watts link, torque arm, trailing arms, bracket mounts, and shocks
- Finish: powder coated
- Includes: coil-over shocks, high-travel springs, and hardware
- Made in the USA
- Part number: R121-200
Vehicle Applications:
- 1973 Ford F-100
- 1974 Ford F-100
- 1975 Ford F-100
- 1976 Ford F-100
- 1977 Ford F-100
- 1978 Ford F-100
- 1979 Ford F-100
FAQ
Which trucks does part R121-200 fit?
It fits 1973-1979 Ford F-100 short wheelbase trucks.
How much drop does it provide?
The system achieves 4 to 7 inches of drop.
What shock valving and spring rate does part R121-200 use?
Part R121-200 uses single-adjustable coil-over shocks with 200 lb high-travel springs.
What does the watts link do?
The compact watts link keeps the rear axle housing centered, prevents the tires from rubbing the bed sides, and provides clearance for rear-exiting exhaust.
