---
product_id: 6419359
title: "Readylift 66-3003 3\" Rear Block Kit - GM Silverado & Sierra 1500 6-lug, silver"
brand: "readylift"
price: "99823 som"
currency: KGS
in_stock: true
reviews_count: 8
url: https://www.desertcart.kg/products/6419359-readylift-66-3003-3-rear-block-kit-gm-silverado-sierra
store_origin: KG
region: Kyrgyzstan
---

# 3-inch precise lift 1+ hour quick install Cast iron durability Readylift 66-3003 3" Rear Block Kit - GM Silverado & Sierra 1500 6-lug, silver

**Brand:** readylift
**Price:** 99823 som
**Availability:** ✅ In Stock

## Summary

> 🚀 Lift your truck, elevate your game!

## Quick Answers

- **What is this?** Readylift 66-3003 3" Rear Block Kit - GM Silverado & Sierra 1500 6-lug, silver by readylift
- **How much does it cost?** 99823 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/6419359-readylift-66-3003-3-rear-block-kit-gm-silverado-sierra)

## Best For

- readylift enthusiasts

## Why This Product

- Trusted readylift brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy-duty cast iron construction ensures long-term durability
- • **Effortless Upgrade:** Anti-rotation ears simplify installation, saving you time
- • **Boost Your Truck’s Capability:** Optimized for 6-lug GM 1500 models to handle heavier loads confidently
- • **Elevate Your Ride with Precision:** 3-inch rear lift for enhanced towing and hauling performance
- • **Tailored Fit for GM Silverado & Sierra:** Vehicle-specific design guarantees perfect compatibility

## Overview

The Readylift 66-3003 Rear Block Kit offers a precise 3-inch lift designed specifically for GM Silverado & Sierra 1500 6-lug trucks. Crafted from durable cast iron with built-in anti-rotation ears, it ensures a secure fit and straightforward installation in just over an hour. Perfect for professionals seeking enhanced towing and hauling capabilities without compromising reliability.

## Description

ReadyLift 3" Rear Block Kits include 2 rear blocks, 4 e-coated U-bolts, 8 nuts and washers and will safely lift the rear of your truck an additional 1 inch to 3 inches depending on application. New models with OEM 1.25 inch blocks will want to take advantage of the additional 1.75 inch of lift for towing and hauling, particularly when using a front leveling kit. Eliminates the dangers of having to stack blocks which can be illegal in some states. ReadyLift block kits will put a slight rake back in your truck for hauling or towing and are designed to work in concert with your ReadyLift suspension leveling kit. Installation time is approximately 1 plus hours.

## Features

- Anti-rotation ears built-in
- 1 plus hour installation time
- The perfect solution for towing and hauling
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Readylift |
| Auto Part Position | Rear |
| Material | Cast Iron |
| Included Components | REAR BLOCK CHVY |
| Maximum Lifting Height | 3 Inches |
| Manufacturer | Readylift |
| UPC | 893131001301 |
| Global Trade Identification Number | 00893131001301 |
| OEM Part Number | 66-3003 |
| Model | REAR BLOCK CHVY |
| Item Weight | 23.2 pounds |
| Product Dimensions | 5 x 17.5 x 9 inches |
| Item model number | 66-3003 |
| Is Discontinued By Manufacturer | No |
| Exterior | Black |
| Manufacturer Part Number | 663003 |

## Product Details

- **Brand:** Readylift
- **Auto Part Position:** Rear
- **Material:** Cast Iron
- **Included Components:** REAR BLOCK CHVY
- **Maximum Lifting Height:** 3 Inches

## Images

![Readylift 66-3003 3" Rear Block Kit - GM Silverado & Sierra 1500 6-lug, silver - Image 1](https://m.media-amazon.com/images/I/61RR4h88dYL.jpg)
![Readylift 66-3003 3" Rear Block Kit - GM Silverado & Sierra 1500 6-lug, silver - Image 2](https://m.media-amazon.com/images/I/61RR4h88dYL.jpg)
![Readylift 66-3003 3" Rear Block Kit - GM Silverado & Sierra 1500 6-lug, silver - Image 3](https://m.media-amazon.com/images/I/71j9+e1yzLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome Rear Lift Kit
*by J***N on November 21, 2011*

You can't get any easier than this kit. It was easy to install with an impact gun but wrenching could take some time because the U bolts have really long threads. I thought it was odd how the manufacturer's nut torque setting was 100ft/lbs, I checked before taking them off, but the instructions stated 120ft/lbs for the new nuts. Either way, I torqued them down to 120ft/lbs with no problem. Ready lift makes some of the best level kits. I am extremely happy with the way my truck looks and there's less body roll around corners. I also bought the front leveling kit that's recommended with these rear blocks as a setup. I'm now ready for my 33inch tires.

### ⭐⭐⭐⭐⭐ Easy install
*by E***C on May 9, 2019*

I put these on my truck a few years ago to go with the 2.25” leveling kit from Readylift. It kept a slight rake for towing, which is exactly what I wanted. Had some fun with the super long threads on the U-joints, but it was a simple install overall.

### ⭐ Damaged and disappointed
*by L***O on April 8, 2025*

The box was damaged and the product was used. In addition the U-bolts are stripped.

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**Shop now:** [https://www.desertcart.kg/products/6419359-readylift-66-3003-3-rear-block-kit-gm-silverado-sierra](https://www.desertcart.kg/products/6419359-readylift-66-3003-3-rear-block-kit-gm-silverado-sierra)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-20*