Gen 2 Raptor rear leaf springs sag under hard use — particularly trucks that see regular desert running, heavy loads, or frequent high-speed whoops. Re-arching is the budget fix. A full spring swap is the right fix. An add-a-leaf is a Band-Aid.
The Gen 2 Raptor's rear suspension is a multi-leaf spring pack, not the coilover setup many performance trucks use. Ford chose leaf springs for load-carrying capacity and to keep towing ratings viable. The tradeoff is that leaf springs take a set under sustained heavy load or extreme impact — they sag, and the truck sits lower in the rear than it did from the factory.
The factory rear leaf pack was designed for a range of uses from highway cruising to moderate desert running. Sustained high-speed whoop running — the kind of use the Raptor was built to do — generates repeated high-impact compression loads on the spring pack. Over time, the spring steel takes a permanent set and doesn't return to its original arc. The truck sits lower at the rear, ride quality changes, and handling balance shifts.
This is not a defect. It's wear. But it's worth understanding because a used Raptor with a sagged rear sits noticeably lower than a fresh truck, handles differently, and may bottom out more easily.
**Signs of rear spring sag:**
A spring shop (Deaver, National Spring, or a local spring shop) removes the spring pack, heats the individual leaves, and re-bends them back to the factory arc. This restores original ride height and spring rate. It is a legitimate repair, not a hack.
**Realistic expectations:**
Replacing the spring pack with new Ford Racing springs (or a quality aftermarket equivalent) restores original spring rate and arc with new steel. This is the correct long-term fix for trucks that see real use.
Ford Racing offers replacement leaf pack assemblies specific to the Gen 2 Raptor. Installation is a straightforward bolt-in job — remove the U-bolts, drop the axle, swap the pack, reinstall. A good shop can do this in 3–5 hours.
Aftermarket options include Deaver's Gen 2 Raptor-specific spring packs. Deaver builds springs for off-road race trucks and their Raptor-specific packs are respected. They offer options from near-stock to increased spring rate for more consistent bottoming control under heavy use.
An add-a-leaf adds a supplemental leaf to the existing pack, increasing spring rate and ride height. This is the cheapest option and the least appropriate.
The problem: adding a leaf to a fatigued pack increases spring rate but doesn't restore the arc of the original leaves — the sag comes from the main leaves losing their arc, and an add-a-leaf doesn't change that. The truck rides firmer but may still sit low. Add-a-leaf is appropriate for trucks that need increased load capacity or are routinely towing near their limit. It's not a spring sag fix.
Several companies offer rear coilover conversion kits for the Gen 2 Raptor. These replace the leaf pack entirely with a coilover setup. This is a different truck after conversion — the ride quality changes significantly, load capacity drops, and the towing capability is reduced. This is a build decision, not a maintenance decision. It costs $3,500–$6,000 in parts before installation.
If your use case is pure desert performance and you're not towing, it's worth investigating. If you use the truck for towing or carrying loads, this path eliminates that capability.
| Part | Vendor | Est. price |
|---|---|---|
| Deaver spring re-arch (Gen 2 Raptor rear pack) | Deaver Springs | ~$450 |
| Ford Racing rear leaf spring pack replacement (Gen 2) | Ford Racing | ~$850 |
| Roadmaster Active Suspension leaf spring add-on | Roadmaster | ~$650 |
| Rancho RS66R leaf spring add-a-leaf kit (F-150 compatible) | Rancho | ~$320 |
Written and maintained by an AZ wheeler and driveway wrencher. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.