---
product_id: 37417992
title: "42851 Limited Slip Supplement, 4 fl. oz."
brand: "lubegard"
price: "₩24834"
currency: KRW
in_stock: true
reviews_count: 8
category: "Lubegard"
url: https://www.desertcart.kr/products/37417992-42851-limited-slip-supplement-4-fl-oz
store_origin: KR
region: South Korea
---

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

**Brand:** lubegard
**Price:** ₩24834
**Availability:** ✅ In Stock

## Summary

> 🛠️ Drive Smooth, Stay Ahead — Don’t Let Your Diff Hold You Back!

## Quick Answers

- **What is this?** 42851 Limited Slip Supplement, 4 fl. oz. by lubegard
- **How much does it cost?** ₩24834 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/37417992-42851-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

- • **Silence the Squeal:** Eliminates differential chatter and annoying noises for a smooth, quiet ride.
- • **Cool Under Pressure:** Advanced heat transfer tech reduces differential temperatures for peak performance.
- • **Universal Compatibility:** Works seamlessly with all makes and models—Ford, GM, Chrysler, and beyond.
- • **Rust & Corrosion Defense:** Inhibits metal wear and protects your investment from the inside out.
- • **Extend Your Gear’s Life:** Formulated to prolong clutch pack and equipment durability, saving you costly repairs.

## Overview

Lubegard 42851 Limited Slip Supplement is a 4 fl. oz. advanced additive designed to eliminate differential chatter, reduce operating temperatures, and extend the life of clutch packs in limited slip differentials. Compatible with all major vehicle brands, it features patented synthetic lxe technology for superior friction modification, rust inhibition, and enhanced heat dissipation, ensuring quieter, cooler, and longer-lasting differential performance.

## 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 stuff is awesome! - This was magic for my transmission. I had a bad shutter. My mechanic told me to try this for my torque converter prior to replacing it. If I had not seen this, I would not have believed it! This stuff is unbelievable! I know it's probably only a patch but it has bought me more time.
Review: 2020 Mercedes GLS450 - Mercedes 2020 GLS 450 / Transfer Case: Recently didn't routine maintenance on our GLS with 95k miles. Last time was at 50k miles. Front/Rear differentials and transfer case. I was getting the low speed humming on turns after the service. I used MB fluids that were called for from the dealership. The transfer case is Limited Slip, but the differentials are not. I ultimately decided to try this product (I use their HVAC cleaner, and also trans additive in my Ford 10R60). Within 10 miles, the noise and corresponding vibration was completely gone. One bottle into the transfer case with the fresh MB 239.41 gear oil, and it's back to behaving like the day I bought it. Sharing because I don't see any Mercedes reviews.

## 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 | #10,987 in Automotive ( See Top 100 in Automotive ) #24 in Gear Oils |
| Brand | Lubegard |
| Brand Name | Lubegard |
| Compatible Material | Metal |
| Container Type | Tube |
| Customer Reviews | 4.6 out of 5 stars 368 Reviews |
| Global Trade Identification Number | 00083137428510 |
| Included Components | Lubegard 42851 Limited Slip Supplement, 4 fl. oz. |
| Item Form | Oil |
| Item Type Name | Limited Slip Supplement |
| Item Weight | 0.27 g |
| Liquid Volume | 4 fluid ounces |
| Manufacturer | LUBEGARD |
| Material | Metal |
| Model Number | 42851 |
| Number of Items | 1 |
| Package Information | Tube |
| Part Number | 42851 |
| Recommended Uses For Product | Automotive |
| UPC | 083137428510 |
| Unit Count | 4 Fluid Ounces |

## Product Details

- **Brand:** Lubegard
- **Item Weight:** 0.27 g
- **Liquid Volume:** 4 fluid ounces
- **Material:** Metal
- **Package Information:** Tube

## Images

![42851 Limited Slip Supplement, 4 fl. oz. - Image 1](https://m.media-amazon.com/images/I/61ghwMHNpdL.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 stuff is awesome!
*by D***. on April 11, 2026*

This was magic for my transmission. I had a bad shutter. My mechanic told me to try this for my torque converter prior to replacing it. If I had not seen this, I would not have believed it! This stuff is unbelievable! I know it's probably only a patch but it has bought me more time.

### ⭐⭐⭐⭐⭐ 2020 Mercedes GLS450
*by N***1 on April 18, 2026*

Mercedes 2020 GLS 450 / Transfer Case: Recently didn't routine maintenance on our GLS with 95k miles. Last time was at 50k miles. Front/Rear differentials and transfer case. I was getting the low speed humming on turns after the service. I used MB fluids that were called for from the dealership. The transfer case is Limited Slip, but the differentials are not. I ultimately decided to try this product (I use their HVAC cleaner, and also trans additive in my Ford 10R60). Within 10 miles, the noise and corresponding vibration was completely gone. One bottle into the transfer case with the fresh MB 239.41 gear oil, and it's back to behaving like the day I bought it. Sharing because I don't see any Mercedes reviews.

### ⭐⭐⭐⭐⭐ No more chatter. Works well
*by V***W on March 28, 2026*

Used it on my Dana 35 track lock. Works just fine

## 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 South Korea*
*Store origin: KR*
*Last updated: 2026-09-03*