---
product_id: 3589897
title: "M4204F318C 8.8\" Traction Lock, Silver"
brand: "ford"
price: "22172914₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Ford"
url: https://www.desertcart.vn/products/3589897-m4204f318c-8-8-traction-lock-silver
store_origin: VN
region: Vietnam
---

# Integrated key lock security 31-spline high strength Upgraded carbon friction discs M4204F318C 8.8" Traction Lock, Silver

**Brand:** ford
**Price:** 22172914₫
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in performance, unlock your edge.

## Quick Answers

- **What is this?** M4204F318C 8.8" Traction Lock, Silver by ford
- **How much does it cost?** 22172914₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/3589897-m4204f318c-8-8-traction-lock-silver)

## Best For

- ford enthusiasts

## Why This Product

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

## Key Features

- • **Secure Key Lock Mechanism:** Built-in locking system to protect your investment and prevent theft.
- • **Plug-and-Play Installation:** Seamlessly fits Explorer IRS housings and compatible setups without hassle.
- • **Race-Ready 31-Spline Power:** Engineered for superior traction and durability in high-performance rear axles.
- • **Carbon Friction Disc Upgrade:** Pre-installed premium carbon discs for enhanced grip and longevity—normally a $160 upgrade!
- • **Factory Genuine Ford Quality:** Authentic OEM part ensuring perfect fit and trusted reliability.

## Overview

The Ford M4204F318C 8.8" Traction Lock is a genuine OEM limited slip carrier featuring a robust 31-spline design and pre-installed upgraded carbon friction discs for enhanced traction and durability. Designed for seamless installation in Explorer IRS housings, it combines race-grade performance with secure key lock protection, making it a top-tier choice for serious automotive enthusiasts seeking reliable rear axle upgrades.

## Description

High Strength 31 Spline Limited Slip.

Review: Genuine Ford part, already equipped with upgraded carbon friction discs - Received this 31-spline trac-lok carrier, and it's a genuine Ford part. Installed it without a hitch in an Explorer IRS housing, as part of a rear axle upgrade in a race car. I was pleasantly surprised to find it's already equipped with upgraded carbon friction discs. The performance upgrade carbon discs is normally available as Ford Performance upgrade kit M-4700-C, which by itself a $160. Awesome deal!
Review: This works great - This is one of the best posse rear setup I have ever used

## Features

- Package Dimensions: 12.96 L x3.97 H x6.74 W (inches)
- Package Weight: 28 pounds
- Country of Origin : China
- Part Number: M4204F318C

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004VQB31E |
| Best Sellers Rank | #1,074,166 in Automotive ( See Top 100 in Automotive ) #502 in Antitheft Locking Devices |
| Brand | Ford |
| Customer Reviews | 4.7 4.7 out of 5 stars (169) |
| Date First Available | September 14, 2004 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 19 pounds |
| Item model number | M-4204-F318C |
| Manufacturer | Ford |
| Manufacturer Part Number | M-4204-F318C |
| Model | Ford M-4204-F318C |
| OEM Part Number | M-4204-F318C |
| Special Features | Key Lock |

## Images

![M4204F318C 8.8" Traction Lock, Silver - Image 1](https://m.media-amazon.com/images/I/71KxO9m+tzL.jpg)

## Questions & Answers

**Q: Will this fit a 2003 mach 1 mustang**
A: You need to count the splines. Unless you have 4.56 factory, you should have 28 spline axles. That will not work in a 31 spline carrier

**Q: Wil this fit in a 2009 ford explorer with an 8.8 31 spline irs rear differential?**
A: 8.8" 31 spline differential is what this is. Yes, this fits into your '09 Ford. I don't believe that the irs makes any difference in the differential.

**Q: I have a 2002 ford explore with a 3:73 8.8 with limited slip with this fit?**
A: I put one in my 2003 8.8 31 spline should work fine.

**Q: Is this strong enough and compatible "without modification" of a diff for a 1999 ford f150 super cab extended 4.6 rwd diff tag 3l55 88  3.55 gear 8.8**
A: This diff is strong enough for an 8.8 axle since it's original equipment. Make sure you have the 8.8 axle and not the 9.75 axle which was common in those trucks. car-part.com is a good place to check your tag number

## Customer Reviews

### ⭐⭐⭐⭐⭐ Genuine Ford part, already equipped with upgraded carbon friction discs
*by D***. on August 6, 2024*

Received this 31-spline trac-lok carrier, and it's a genuine Ford part. Installed it without a hitch in an Explorer IRS housing, as part of a rear axle upgrade in a race car. I was pleasantly surprised to find it's already equipped with upgraded carbon friction discs. The performance upgrade carbon discs is normally available as Ford Performance upgrade kit M-4700-C, which by itself a $160. Awesome deal!

### ⭐⭐⭐⭐⭐ This works great
*by D***R on February 25, 2025*

This is one of the best posse rear setup I have ever used

### ⭐⭐⭐⭐⭐ Worth It
*by V***I on December 28, 2023*

For the price, this has to be one of the best upgrades that can be had for any Ford 8.8” differential. Works great in my ‘93 F-150.

## Frequently Bought Together

- Ford M4204F318C 8.8" Traction Lock, Silver
- Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz.
- USA Standard Master Overhaul kit for '09 & Down Ford 8.8" Differential.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-13*