Pacbrake Vehicle Suspension
- PB63RV
- Lift Blocks
- Towing/Load Leveling
- Pacbrake
- Rear Axle Suspension Enhancement
Hook up a trailer and youll feel it—rear squat, vague handling, and an unbalanced stance. These rear lift blocks help level your truck, reduce sag, and restore control so you can tow with confidence every time you hit the road.
Highlights
- Custom Fit for Ford Super Duty: Designed for 2011–2025 F-250/F-350 SRW (2WD/4WD) without AUX/Overload springs and no more than 3 leafs.
- 4" Rear Lift for Better Balance: Helps level your truck under heavy loads and improves rear-end stability.
- Heavy-Duty Cast Iron Blocks: Delivers long-term strength and stability under load with no flex and no fade.
- Corrosion-Resistant Hardware: Includes Geomet-coated U-bolts and zinc-plated flange nuts.
- Backed by a Lifetime Warranty: Pacbrake stands behind every component with limited lifetime coverage.
Features to know about
Confidence You Can Load Up
This 4" rear block kit gives your truck the stance and support it needs when towing or hauling. It helps level the rear end, improve weight distribution, and restore ride control under load. Made from solid cast iron with rust-resistant high-strength steel U-bolts, its built to handle hard use and last the life of your truck.
Specs:
Vehicle Application:
- 2011–2025 Ford F-250/F-350 SRW (2WD/4WD) without AUX/Overload springs
- Will not fit DRW models
- Will not fit trucks with 2-piece driveshafts
- Will not fit trucks with AUX/Overload springs (use HP10519)
- Will not fit leaf packs with more than 3 leafs
Lift:
- 4" rear lift (actual lift may vary based on factory block removal)
Maximum Tire Size:
Material & Hardware:
- Solid cast iron blocks
- Grade 10.9 Geomet-coated U-bolts
- Zinc-plated flange nuts
Note:
- Trucks with a factory rear block will see less net lift, as the factory block is removed during install.
- Do not stack this block on top of OEM or aftermarket blocks. Damage to the vehicle will occur.
- Do not use with add-on air springs or load-leveling kits designed to mount to the extended jounce bumper strike pad.
HP10515 Packbrake Rear Block Kit for 2011-2025 Ford F-250/F-350 without AUX Springs - 4" Lift
Installation Details 
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