Overview
The Firestone Ride-Rite 2251 is a rear axle-mount air helper spring kit that uses double convoluted bags rated at 4,800 lbs per pair. Helper springs carry part of the rear load, which helps keep a heavy or off-center load from sagging the back of the vehicle. Heavy duty Ride-Rite kits provide up to 5000 lbs of leveling capacity.
Confirm fit for your vehicle’s year, make, model and trim before choosing this direct fit rear air bag kit.
Key features
- Levels the rear end under off-center weight
- Helps reduce bottoming out
- Air adjustment gives a steadier ride under load
- Adds stability when the vehicle is heavily loaded
- Bolt-on mount with no drilling required
- Manual inflation; optional height sensor
Lift kits and spacers
A lift changes how the rear axle sits under the body, so the position of an air helper bag and its mounting points can shift. Spacers are commonly used to restore clearance between the axle, springs and fenders. Before installing any spacer, check that the air lines and brake lines are not stretched or pinched when the suspension is at full travel.
Because a lift may change ride height, measure clearance with the vehicle at rest and again after a short test drive. Recheck bolts after the first trips, since spacers can change the load on fasteners. Keep the air system clear of tire rub points, and move the lines if they come close to moving parts.
- Measure clearance at the axle and fender
- Check brake and air lines for tension
- Recheck fastener tightness after test driving
- Keep air lines clear of tire rub points
Specifications
| Brand | Firestone Ride-Rite |
|---|---|
| Part number | 2251 |
| UPC | 767555100844 |
| System type | Axle mount |
| Bag/spring type | Double convoluted |
| Load capacity | 4,800 lbs per pair |
| Installation | Bolt on, no drilling required |
| Inflation method | Manual |
| Height sensor | Optional |
| Lift kit compatibility | Yes, may require spacers |
Vehicle fitment
Fit must be confirmed for your exact year, make, model and trim, since the vehicle determines the match.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Mounting is bolt-on with no drilling. Because the kit may need spacers on a lifted vehicle, check clearance at the axle and fender once everything is set.
What’s included
Plan to verify the brackets, hardware and air lines against your installation before starting the job.
Not included: air compressor and gauges. The height sensor is optional.
