FR1504E Rear Axle SES Suspension Enhancement System Kit For 15-20 Ford F-150 4WD
FR1504E Rear Axle SES Suspension Enhancement System Kit For 15-20 Ford F-150 4WD
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SES Suspension Enhancement System Kit for Ford F-150 4WD
Rear axle suspension enhancement system kit engineered to improve load handling and ride stability on 2015–2020 Ford F-150 4WD models, referencing OEM cross-reference FR1504E.
Overview
This SES Suspension Enhancement System Kit is a comprehensive rear axle upgrade designed to reinforce the factory suspension on 2015–2020 Ford F-150 4WD trucks. It actively reduces sag and body roll when towing or hauling heavy payloads, making the FR1504E rear axle SES Suspension Enhancement System Kit an essential solution for contractors and fleet operators who demand consistent, controlled ride quality under load.
Built For Performance
- Progressive-rate coil design maintains factory ride comfort when unloaded
- Heavy-gauge steel construction resists deformation under sustained cargo weight
- Corrosion-resistant powder-coat finish stands up to road salt and moisture
- Direct bolt-on configuration eliminates the need for welding or frame modification
- Tuned spring rate reduces rear squat and improves steering response during towing
Fits These Machines
- for Ford F-150 4WD 2015
- for Ford F-150 4WD 2016
- for Ford F-150 4WD 2017
- for Ford F-150 4WD 2018
- for Ford F-150 4WD 2019
- for Ford F-150 4WD 2020
On-The-Job Use
- Maintains level ride height when carrying loaded bed toolboxes
- Reduces rear-end sag while towing enclosed job-site trailers
- Stabilizes chassis motion on uneven gravel and dirt access roads
- Supports consistent braking balance with heavy cargo aboard
- Preserves tire contact and driveline alignment under maximum payload
Specs At A Glance
| Part Number(s) | FR1504E |
| Placement | Rear Axle |
| System Type | Suspension Enhancement System Kit |
| Drivetrain Compatibility | 4WD |
Good To Know
Q: Is professional alignment recommended after installing this rear axle suspension enhancement system kit on an F-150 4WD? A: A four-wheel alignment check is advised after installation to confirm that rear thrust angle and steering center remain within factory range, particularly when the truck carries consistent heavy loads.
Q: Can this FR1504E SES kit be used alongside factory rear blocks or air helper springs? A: It may be paired with factory rear blocks, but mixing with aftermarket air helper springs requires verifying clearance at full compression to avoid coil bind or bracket contact during suspension articulation.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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