---
product_id: 41944869
title: "6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs"
price: "A$148"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/41944869-6654-shock-extension-kit-fits-99-06-silverado-sierra-1500
store_origin: AU
region: Australia
---

# Corrects shock angle for smoother ride Grade 8 hardware for ultimate durability Heavy-duty stamped steel construction 6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs

**Price:** A$148
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate your lowered truck’s performance—ride smoother, look sharper!

## Quick Answers

- **What is this?** 6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs
- **How much does it cost?** A$148 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/41944869-6654-shock-extension-kit-fits-99-06-silverado-sierra-1500)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Powder-coated heavy-duty steel resists corrosion and wear
- • **Enhanced Ride Comfort:** Smooths out rough bumps for a premium driving experience
- • **Effortless Installation:** Includes Grade 8 hardware and clear instructions for a perfect fit
- • **Tailored for Silverado & Sierra:** Specifically engineered for 1999-2006 1500 models, all cab styles
- • **Precision Shock Angle Correction:** Optimizes shock travel on aggressively lowered trucks

## Overview

The Belltech 6654 Shock Extension Kit is a precision-engineered suspension upgrade designed for 1999-2006 Silverado and Sierra 1500 trucks. Crafted from heavy-duty stamped steel with a durable powder coat finish, it corrects shock angles on aggressively lowered vehicles to improve shock travel and ride comfort. The kit includes Grade 8 hardware and installation instructions, ensuring a reliable, long-lasting fit that transforms your truck’s handling and smoothness over bumps.

## Description

Shock Extension Pair

Review: right parts for the vehicle - I bought these for 06 GMC Sierra 1500 Crew Cab. The previous owner had did a 4" drop on the rear and I notice the ride was a bit rough going over bumps. I installed these adapter and man kid you not, it really made a difference.
Review: Belltech shock extendenders - Fit perfect on the truck with no issues, work as they should. Super happy with purchase.

## Features

- Lower shock mount, aids in correcting working angle for proper shock function
- Constructed of heavy duty stamped steel and powder coated for long lasting finish
- On aggressively lowered vehicles, this aids in correcting the shock angle and increasing travel
- Grade 8 hardware and installation instructions included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007FP0NFK |
| Best Sellers Rank | #549,183 in Automotive ( See Top 100 in Automotive ) #255 in Automotive Performance Shocks, Struts & Suspension #2,332 in Automotive Replacement Shocks |
| Brand | Belltech |
| Customer Reviews | 4.7 4.7 out of 5 stars (361) |
| Date First Available | March 31, 2010 |
| Exterior | Chrome |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.2 pounds |
| Item model number | 6654 |
| Manufacturer | Belltech |
| Manufacturer Part Number | 6654 |
| Model | 6654 |
| OEM Part Number | 6654 |
| Position | Rear |
| Product Dimensions | 13 x 5 x 5 inches |

## Images

![6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs - Image 1](https://m.media-amazon.com/images/I/51ZhpjqvrGL.jpg)
![6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs - Image 2](https://m.media-amazon.com/images/I/711EuaMYJyL.jpg)
![6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs - Image 3](https://m.media-amazon.com/images/I/7199F1o7SZL.jpg)
![6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs - Image 4](https://m.media-amazon.com/images/I/71ccuLoZ6AL.jpg)
![6654 Shock Extension Kit fits 99-06 Silverado Sierra 1500 all cabs - Image 5](https://m.media-amazon.com/images/I/71dDh4bPcEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ right parts for the vehicle
*by J***F on October 8, 2024*

I bought these for 06 GMC Sierra 1500 Crew Cab. The previous owner had did a 4" drop on the rear and I notice the ride was a bit rough going over bumps. I installed these adapter and man kid you not, it really made a difference.

### ⭐⭐⭐⭐⭐ Belltech shock extendenders
*by J***. on September 22, 2025*

Fit perfect on the truck with no issues, work as they should. Super happy with purchase.

### ⭐⭐⭐⭐⭐ Works!
*by N***R on June 27, 2025*

Fit on my 2002 2500hd after I did 3” drop shackled. It noticeably improved the shock absorber function!

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**Shop now:** [https://www.desertcart.com.au/products/41944869-6654-shock-extension-kit-fits-99-06-silverado-sierra-1500](https://www.desertcart.com.au/products/41944869-6654-shock-extension-kit-fits-99-06-silverado-sierra-1500)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-03*