---
product_id: 37417992
title: "Lubegard 42851 Limited Slip Supplement, 4 fl. oz."
brand: "lubegard"
price: "€ 12.70"
currency: EUR
in_stock: true
reviews_count: 11
category: "Lubegard"
url: https://www.desertcart.ie/products/37417992-lubegard-42851-limited-slip-supplement-4-fl-oz
store_origin: IE
region: Ireland
---

# Reduces differential temperatures Universal fit for all limited slip diffs Protects against rust & corrosion Lubegard 42851 Limited Slip Supplement, 4 fl. oz.

**Brand:** lubegard
**Price:** € 12.70
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your drive: silence, protection, and longevity in one powerful tube!

## Quick Answers

- **What is this?** Lubegard 42851 Limited Slip Supplement, 4 fl. oz. by lubegard
- **How much does it cost?** € 12.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/37417992-lubegard-42851-limited-slip-supplement-4-fl-oz)

## Best For

- lubegard enthusiasts

## Why This Product

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

## Key Features

- • **Heat Be Gone:** Advanced LXE technology pulls heat away, reducing differential temperatures and extending component life.
- • **Rust-Free Ride:** Inhibits rust and corrosion, safeguarding your differential’s internal gears and bearings.
- • **Silence the Squeal:** Eliminates differential chatter and annoying noises for a smooth, quiet ride.
- • **Clutch Life Maximizer:** Extends clutch pack and equipment life, saving you costly repairs and downtime.
- • **Universal Compatibility:** Works seamlessly with all makes and models including Ford, GM, and Chrysler limited slip differentials.

## Overview

Lubegard 42851 Limited Slip Supplement is a 4 fl. oz. advanced friction modifier designed to eliminate differential chatter and reduce noise in all limited slip differentials. Featuring patented synthetic LXE technology, it lowers operating temperatures, inhibits rust and corrosion, and extends clutch pack life across all major vehicle brands. Easy to use and universally compatible, it’s the essential additive for maintaining smooth, quiet, and durable limited slip differentials.

## Description

LUBEGARD limited slip supplement is a universal limited slip supplement that eliminates differential chatter, reduces temperatures, extends clutch pack and equipment life in any limited slip differential. It also reduces differential temperatures and extends clutch pack and equipment life. It is specifically formulated for the clutches in limited slip differentials. They depend on the operation of pre-loaded clutch packs on each axle shaft. Gear oils made for standard differentials do not contain the additives that make these clutches work. The LUBEGARD limited slip supplement contains patented and synthetic lxe (liquid wax Ester) technology, an advanced friction modifier to eliminate chatter. It contains rust and corrosion inhibitors to protect bearings and gear surfaces. The lxe technology also acts as an enhanced heat transfer component to pull heat out of the gear box and clutches more quickly providing cooler running units. The LUBEGARD limited slip supplement benefits All makes of vehicles with limited slip differentials including GM, Ford and Chrysler. Directions for use: if necessary, remove enough gear oil to maintain a proper level with the addition of LUBEGARD limited slip supplement. Holding tip closed, cut off tip end, add entire contents of the LUBEGARD tube (4 fl. oz. ) into the clutch type limited slip differential. A 4 oz. Tube will treat a standard 2 qtr. system. For larger capacities, follow a treat rate of 2 oz. of LUBEGARD for every quart of differential fluid. For use with synthetic gear and differential oils a double treat rate of 4 oz. per quart will provide the most optimum results. Allow 20 miles of road operation for complete mixing.

Review: THIS PRODUCT WORKS! - Looks like This works! changed differential oil in this truck had a slight whne in it put this product in and it seems to have cleared up the whine i not hearing it now follow there instructions when putting this product in
Review: This stuff WORKS. LUBEGARD is a king among paupers - Good additive for any vehicle differential that has a limited slip system. Any vehicle that requires a limited slip additive can benefit from Lubegard! I love their products and think it aids with longevity of the parts!

## Features

- Eliminates differential chatter and other noises (squeals, groans, etc. )
- Universally works in all makes and models with limited slip differentials including Ford, Chrysler and GM; for use in all final drives and limited slip posi-traction units
- Inhibits rust and corrosion and also safe for yellow metal
- Extends clutch pack and equipment life
- Reduces differential temperatures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01JRPAPLM |
| Best Sellers Rank | #16,656 in Automotive ( See Top 100 in Automotive ) #32 in Gear Oils |
| Brand | Lubegard |
| Customer Reviews | 4.8 4.8 out of 5 stars (462) |
| Date First Available | August 3, 2016 |
| Global Trade Identification Number | 00083137428510 |
| Item Form | Oil |
| Item Weight | 0.01 ounces |
| Item model number | 42851 |
| Liquid Volume | 4 Fluid Ounces |
| Manufacturer | LUBEGARD |
| Manufacturer Part Number | 42851 |
| Material | Metal |
| Model | Friction Modifier |
| Number of Items | 1 |
| OEM Part Number | 88900330, Ford XL-3 |
| Package Information | Tube |
| Product Dimensions | 1.13 x 2.5 x 7.13 inches |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Eliminating Differential Noises, Extending Clutch Pack Life |
| UPC | 083137428510 |
| Unit Count | 4.0 Fluid Ounces |

## Product Details

- **Brand:** Lubegard
- **Item Weight:** 0.01 Ounces
- **Liquid Volume:** 4 Fluid Ounces
- **Material:** Metal
- **Package Information:** Tube

## Images

![Lubegard 42851 Limited Slip Supplement, 4 fl. oz. - Image 1](https://m.media-amazon.com/images/I/81fVfSeif8L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Will this work in a 04 BMW 330i diff ?**
A: The Lubegard 31904 is for Ford products.  I recommend calling the BMW dealer and ask them which type lube and additive are required for your year make and model vehicle.  If you have a rear noise the Lubegard 31904 will not fix the problem, the issue may be a bearing, spacer or something more serious that will require a trained BMW repair mechanic.

**Q: How much do you use for a dana 35 in a jeep cherokee?**
A: One 4 ounce tube treats capacities up to 2 quarts.  Capacities over 2 quarts require a second 4 ounce tube.

**Q: Can I pour all 4oz into a transfer case which has 1 quart of fluid?**
A: I’ve always used it in a rear diff that has a clutch pack for limited slip. You might want to check your owners manual to make sure they require it in the transfer case.

**Q: Would this be a replacement for the mopar limited slip additive?**
A: It works very well in TRD (Toyota) limited slip units which can be very finicky about additives. I don't know what Mopar specs are, or your application requirements.

## Customer Reviews

### ⭐⭐⭐⭐⭐ THIS PRODUCT WORKS!
*by L***S on November 16, 2025*

Looks like This works! changed differential oil in this truck had a slight whne in it put this product in and it seems to have cleared up the whine i not hearing it now follow there instructions when putting this product in

### ⭐⭐⭐⭐⭐ This stuff WORKS. LUBEGARD is a king among paupers
*by M***G on February 21, 2025*

Good additive for any vehicle differential that has a limited slip system. Any vehicle that requires a limited slip additive can benefit from Lubegard! I love their products and think it aids with longevity of the parts!

### ⭐⭐⭐⭐⭐ great price and product
*by K***N on December 29, 2025*

great price and product

## Frequently Bought Together

- Lubegard 42851 Limited Slip Supplement, 4 fl. oz.
- Valvoline FlexFill Advanced Full Synthetic 75W-140 Gear Oil 1 QT Pouch
- Valvoline Daily Protection 80W-90 Gear Oil 1 QT

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*