

2011-2016 Ford Super Duty F-250/F-350 3" Rear Blocks by Apoc Industries: Flat No-Taper Steel Replacement – USA-Made
Upgrade Your Ford Super Duty F-250/F-350 with Apoc Industries 3" Rear Blocks – For 2011-2016 Models
Important: These blocks are intended to replace the factory blocks entirely, not to be used in conjunction with them for proper fit and function.
Achieve a custom stance on your Ford Super Duty with Apoc Industries’ 3-inch fabricated rear blocks, engineered for unmatched durability and optimal driveline geometry. Designed to fit 2011–2016 Ford Super Duty F-250/F-350, these heavy-duty blocks are built from 1/4" fully-welded steel and finished in a rugged powder-coated satin black.
These flat, no-taper blocks are ideal for heavy hauling, towing, and off-road abuse. Whether you're upgrading for looks or performance, Apoc delivers the strength and reliability your truck demands.
Sold as a pair. U-bolts optional.
Whether you're searching for best rear blocks for Ford Super Duty F-250/F-350 or Ford Super Duty suspension kits, these flat no-taper blocks provide a fixed 3" height by replacing the factory block to maintain proper driveline angles and achieve a balanced stance. Say goodbye to factory limitations and hello to an aggressive look that enhances towing, payload, and off-road capability.
Key Features & Benefits of Apoc Industries Ford Super Duty F-250/F-350 Rear Blocks:
- Precision Fitment: Specifically for 2011-2016 Ford F-250/F-350 Super Duty 2WD and 4WD models, including XL, XLT, Lariat, King Ranch, and Platinum editions.
- Heavy-Duty Construction: Fabricated from 1/4" heavy-duty steel plate, fully welded for superior strength.
- Block Dimensions: 3" wide and 3" height for stable, reliable performance.
- Flat Design: No taper for straightforward replacement and consistent geometry.
- Durable Finish: Powder-coated in satin black for excellent corrosion resistance and a professional appearance.
- U-Bolts Optional: Focus on core components; optional 5/8" main U-bolts available for secure installation over leaf springs and under the axle.
These fabricated rear blocks for Ford Super Duty F-250/F-350 are a top choice for Ford Super Duty rear suspension upgrades, while preserving ride quality and safety.
Why Choose Apoc Industries Rear Blocks for Your Ford Super Duty F-250/F-350?
When it comes to durable Ford Super Duty F-250/F-350 rear blocks, Apoc Industries excels with American-made quality focused on strength and precision. Unlike cast or aluminum options, our 1/4" steel build with welded construction provides exceptional durability for towing trailers or tackling tough terrain. The flat, no-taper design ensures simple installation and reliable performance on your 2011-2016 Ford Super Duty F-250/F-350 4WD blocks or 2WD configurations.
Proudly built in the USA, these blocks are rigorously tested for long-term performance. Whether enhancing a 2013 F-250 for everyday use or a 2016 F-350 for demanding jobs, you'll receive superior value free from the drawbacks of cheap imports.
Technical Specifications
- Vehicle Fitment: 2011-2016 Ford F-250/F-350 Super Duty
- Block Height: 3 Inches
- Block Width: 3 Inches
- Material: 1/4" Fully-Welded Steel
- Taper Angle: None (Flat Design)
- Finish: Satin Black Powder Coat
- Sold As: Pair (2 blocks)
- Optional: U-bolts (sold separately)
Ready to transform your ride? Order your 2011-2016 Ford Super Duty F-250/F-350 3" rear blocks today and unlock the full potential of your truck! Popular searches: Ford F250 rear kits, best blocks for F-350, affordable Ford Super Duty suspension upgrades, F-250/F-350 rear adjustment blocks.

Built Right. Backed. Right
Our crew’s on call Monday–Friday, 9–5 EST. Hit us up at 865-983-5004 — real support, done right.
Built for Strength. Designed to Fit.
Vehicle-Specific Fit
Apoc lift blocks are vehicle-specific and engineered to match your truck’s factory leaf spring setup. The alignment hole and center pin locations are precisely positioned to match OEM specs, ensuring a secure, direct fit with no modifications required.
Vibration-Reducing Taper
Tapered lift blocks correct pinion angle, which helps maintain proper driveline geometry on lifted trucks. This reduces or eliminates driveline vibrations and minimizes wear on u-joints and differential components—especially important when adding rear lift height.
Benifts of anti-wrap lift blocks
Standard blocks provide basic lift, while anti-wrap blocks feature a wider footprint and additional bracing to reduce axle wrap and wheel hop—especially important for lifted trucks with big tires or high torque output.
FAQ'S
Lift Blocks
Here are some of the most common questions we receive about lift blocks, installation, and related components. Our goal is to help you make the best decision for your build with clear, practical information.
A: Yes. Apoc lift blocks are true to size—the height listed is the actual block height, providing that exact amount of rear lift when installed. For example, a 3" block adds 3" of lift over your current leaf spring height.
A: Apoc lift blocks are vehicle-specific and engineered to match your truck’s factory leaf spring setup. The alignment hole and center pin locations are precisely positioned to match OEM specs, ensuring a secure, direct fit with no modifications required.
The main U-bolts are required to secure the axle and block assembly to your leaf springs. You do not have to purchase them from us if your existing U-bolts are long enough. However, if you are changing the size of your lift block, you will need longer U-bolts. Simply measure the difference in height between your current block and the new block — your new U-bolts will need to be that much longer than your current ones.
Anti-wrap U-bolts are optional. They are designed to secure the wider footprint of the block more firmly to the leaf spring, helping to reduce axle wrap, spring twist, and wheel hop. The taller the block, the more beneficial anti-wrap U-bolts become. For block heights over 6 inches, we recommend also installing ladder bars for added stability and to prevent driveline issues.
A: Standard blocks provide basic lift, while anti-wrap blocks feature a wider footprint and additional bracing to reduce axle wrap and wheel hop—especially important for lifted trucks with big tires or high torque output.
A: No, stacking lift blocks is not recommended and can be dangerous. It compromises stability, increases the risk of axle shift, and can cause premature wear or failure of suspension components. Always use a single, properly sized Apoc lift block for safe, reliable performance.

