Made in USA Chevy Silverado GMC Sierra rear lift blocks with compound taper anti-wrap design
Made in USA Chevy Silverado GMC Sierra rear lift blocks with compound taper anti-wrap design
Made in USA rear lift blocks for 2011-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD with compound taper anti-wrap design
2004-2025 Ford F-150 rear lift blocks with integrated bump stops in multiple sizes for stable, durable suspension lift
Made in USA heavy-duty rear lift blocks for 2011-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD with compound taper anti-wrap design
Made in USA Chevy Silverado GMC Sierra rear lift blocks with compound taper anti-wrap design
Made in USA heavy-duty rear lift blocks for 2011-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks
Made in USA Chevy Silverado and GMC Sierra heavy-duty rear lift blocks with compound taper anti-wrap design
Made in USA rear lift blocks for 2011-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD with compound taper anti-wrap design
Made in USA Chevy Silverado GMC Sierra rear lift blocks with compound taper anti-wrap design
Made in USA Chevy Silverado GMC Sierra rear lift blocks with compound taper anti-wrap design
Made in USA rear lift blocks for 2011-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD with compound taper anti-wrap design
Made in USA rear lift blocks for 2011-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD with compound taper anti-wrap design
Made in USA 2011-2026 Chevy Silverado GMC Sierra rear lift blocks with compound taper anti-wrap design
Apoc Industries

Made in USA – 2011–2026 Chevy Silverado / GMC Sierra 2500HD & 3500HD 4", 5", 6", or 8" Rear Lift Blocks – Compound Taper Anti-Wrap Design

Sale price$ 279.80
SKU: 42-064
Overload Springs

If your vehicle has overload springs, call us for proper U-bolt sizing!

Size: 4 Inch

Size
Anti-Wrap U-bolts: No

Anti-Wrap U-bolts
Main U-bolts: No

Main U-bolts
View Install Guide

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.

First with Compound Tapers. Built to Stay Centered

Built Better, Not Cheaper. Period

Compound Taper Technology

Apoc Anti-Wrap Lift Blocks are the first ever with exclusive compound tapers. The top taper matches your factory OEM leaf spring angle for perfect seating, while the bottom taper maintains proper pinion angle at your chosen lift height.

The Problem with Standard Blocks

Most lift blocks only correct pinion angle and ignore the leaf spring angle. The taller the block, the further back they push your axle — throwing wheels off-center in the fenders and over-extending your driveshaft, which can damage your transfer case.

Benefits of Apoc Anti-Wrap Lift Blocks

Our heavier-duty steel construction with precision robotic welds delivers zero flex and maximum strength. The anti-wrap geometry keeps your axle centered, protects your drivetrain, and provides a stable ride — perfect for serious off-roaders, daily drivers, and tow vehicles.

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.

100%

American-Made. No Compromises

Order With Confidence — But Verify Your U-Bolts

Most Apoc Industries vehicle-specific lift block kits already include U-bolts matched to your application. However, trucks with added leaf springs or overload packs are not accounted for in the standard kit. Please verify your current U-bolt lengths before installing — if anything doesn't match, our customer service team can get you the correct U-bolts and eliminate any issues before you're under the truck.

PRE-INSTALL CHECKLIST: CHOOSING THE RIGHT BLOCK HEIGHT

  1. 1
    Measure fender well gap — front and rear with the truck on level ground, measure the gap between the top of the tire and the fender well at the front axle and again at the rear axle.
  2. 2
    Calculate the difference more gap in front than rear (e.g. 2" more up front): you need to ADD that difference in the rear — select a block that matches the gap difference. More gap in rear than front (e.g. 2" more in back): you need a block SHORTER than your current one by that difference.
  3. 3
    Measure your current rear block height, Measure from the bottom of the existing block to the top where it contacts the leaf spring. Take the measurement at the center/middle of the block — not the front or rear edge. Some blocks are tapered, so the front edge may be shorter than the rear edge; the center gives you the true height.
  4. 4
    Calculate your target block height Current block height ± the fender gap difference = your target lift block height. Use this number to select your Size variant.

U-BOLT SELECTOR GUIDE

  • Identify your bend style — There are three bend types: Round bend (nuts sit on top of the leaf spring pack. Inside width typically matches the axle tube diameter.), Square bend (wraps over the top of the leaf spring pack; nuts tighten from below the axle. Inside width on square bends is typically matched to the leaf spring width, not the axle housing.), Semi-round bend (primarily used on Ford Super Duty applications)
  • Measure inside width — Measure the inside dimension between the two long legs of your current U-bolt (leg to leg, inside edge to inside edge). This must match your axle housing width.
  • Measure U-bolt length — Measure the total length of the long legs on your current U-bolts. When adding a taller block, you'll need longer U-bolts to maintain proper thread engagement through the axle plate and nuts.
  • Select your U-bolt option — Use your bend style, inside width, and leg length to select the correct U-bolt variant. If your current U-bolts are borderline on length after adding the new block height, size up.

Customer Reviews

Overall rating: 5.0 / 5 from 23 reviews.

Customer photo review of 2011-2024 Chevy Silverado / GMC Sierra 2500 / 3500 4, 6, 8 Inch Lift Blocks

Love it! The lift kit i bought only comes with a 5in block even on their larger lifts. I love the way these blocks lift the rear to match the front so there is no sag. Amazing quality gents! BDS 6.5in lift Cognito stage 4 level to give an extra inch. APOC Industries 6in block with McGaughys 1 in rear leaf shims.

Dave F. 5/5 Verified

2011-2024 Chevy Silverado / GMC Sierra 2500 / 3500 4, 6, 8 Inch Lift Blocks

Customer photo review of 2011-2024 Chevy Silverado / GMC Sierra 2500 / 3500 4, 6, 8 Inch Lift Blocks

I’ve had an amazing experience with this company so far. I believe it was the owner who reached out to me personally to ensure I ordered the correct bolts with my lift blocks. Customer service from these guys is top tier. The lift blocks themselves are extremely stout. My honest overall review of the company and product is a 10/10 so far. Let’s hope the product outlives my ownership.

David H. 5/5 Verified

2011-2024 Chevy Silverado / GMC Sierra 2500 / 3500 4, 6, 8 Inch Lift Blocks

Customer photo review of 2011-2024 Chevy Silverado / GMC Sierra 2500 / 3500 4, 6, 8 Inch Lift Blocks

A PLEASURE TO DEAL WITH BOB. COMMING FROM A AUTO BODY SHOP BACKROUND , I CANT SAY ENOUGH ABOUT THESE BLOCKS. INSTALLED CORRECTLY THEY ARE BULLETPROOF. WELL MADE , AND A PERFECT FIT. VERY SMOOTH INSTALL. THEY ARE SECOND TO NONE !!!!! VERY SATISFIED WITH THE PRODUCT THANKS MUCH, GEORGE

George R. 5/5 Verified

2011-2024 Chevy Silverado / GMC Sierra 2500 / 3500 4, 6, 8 Inch Lift Blocks

Learn how to get the most out of your lift with expert install guides and tech tips from Apoc Industries.

Suspension Tech & Guides

Why Apoc’s New Compound Taper Anti-Wrap Lift Blocks Are a Game-Changer (Compared to Standard Blocks)
Lift Blocks

Why Apoc’s New Compound Taper Anti-Wrap Lift Blocks Are a Game-Changer (Compared to Standard Blocks)

If you’re lifting your truck — whether for better stance, towing capability, off-roading, or just because it looks badass — the rear suspension is critical. Lift blocks are one of the most popu...

Jun 10, 2026