Suspension & Wheels

Rear suspension load support

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.

Progressive rear leaf springs

Deaver

Researching

Part number: L83 / L84 — L84 currently leading

Why this option

Progressive-rate springs would improve unloaded ride quality while still supporting towing loads, addressing the stiff-empty/soft-loaded compromise of a factory pack. L84 currently looks the more promising of the two for maintaining factory Tremor rear height.

Trade-offs

Cost and lead time versus staying with a factory-style pack; L83 vs. L84 rate selection still being evaluated against the 6,500-lb Airstream being towed.

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.

Stock-style replacement leaf springs

Ford OEM

Researching

Why this option

Lower cost, guaranteed fitment, and no unknowns — the conservative option if the Deaver lead time or rate selection doesn't pencil out.

Trade-offs

Keeps the factory unloaded ride/tow compromise rather than improving it.

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

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