Suspension & Wheels

Rear load support method

2023 Ford F-150 Tremor · 5.0L V8

This decision is still open. 2 options are being compared, nothing has been ordered, and no manufacturer has been committed to. Where one option is marked as currently leaning, that's a preference at this stage — not a decision.

SES Tremor rear helper spring kit

Timbren

Researching

Preferred, not yet purchased

Part number: FR1504ESPCR

Why this option

Current preferred direction — passive, no compressor or air lines to maintain, and simpler to install and live with day to day.

Trade-offs

Progressive rather than fully adjustable; can't be dialed down to zero for an unloaded ride the way air can.

What it actually cost

Not purchased yet — no cost recorded.

Cost, installation notes, and a verdict will be added here once this part is bought and fitted.

LoadLifter 5000

Air Lift

Researching

Part number: 57355

Why this option

Remains the backup. Fully adjustable load levelling front to rear, which matters if the truck ends up towing loads that vary well away from the Airstream's 6,500 lb.

Trade-offs

Adds a compressor, air lines, and another system to maintain — more complexity than the project's philosophy of preferring durable, simple components.

What it actually cost

Not purchased yet — no cost recorded.

Cost, installation notes, and a verdict will be added here once this part is bought and fitted.

Journal entries about this decision

Airbags vs. Timbren

Vehicle this applies to

Fitment notes here are specific to this truck's configuration. Check yours before ordering.

Vehicle: 2023 Ford F-150 Tremor
Engine: 5.0L V8
Cab: SuperCrew
Bed: 5.5 ft
Rear axle: 3.73
Factory options: Adaptive cruise, moonroof
Target tire size: 35 in
Tow load: 6,500 lb Airstream
Front end: Full OEM Raptor conversion planned
Parts fitment: Gen 3 Raptor spec
Title: Salvage — rear impact, both headlights, rear leaf springs