---
product_id: 279005618
title: "58204 Heavy ShockProof Gear Oil - 1 Quart Bottle"
brand: "red line"
price: "2046508₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Red Line"
url: https://www.desertcart.vn/products/279005618-58204-heavy-shockproof-gear-oil-1-quart-bottle
store_origin: VN
region: Vietnam
---

# Extended drain intervals for less maintenance Fully-synthetic polyol ester base for extreme conditions 75W90 viscosity for optimal gear protection 58204 Heavy ShockProof Gear Oil - 1 Quart Bottle

**Brand:** red line
**Price:** 2046508₫
**Availability:** ✅ In Stock

## Summary

> ⚙️ Gear up with the shockproof edge that pros trust!

## Quick Answers

- **What is this?** 58204 Heavy ShockProof Gear Oil - 1 Quart Bottle by red line
- **How much does it cost?** 2046508₫ 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/279005618-58204-heavy-shockproof-gear-oil-1-quart-bottle)

## Best For

- red line enthusiasts

## Why This Product

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

## Key Features

- • **Proven Track Record:** Trusted by top-tier racing teams in Sprint, Midget, and NHRA applications for superior shock absorption and gear protection.
- • **Extended Service Life:** Designed to reduce wear and extend drain intervals, saving you time and money on maintenance.
- • **Race-Ready Lubrication:** Engineered with a fully-synthetic polyol ester base to deliver unmatched protection under extreme conditions.
- • **Industry-Leading Standards:** Exceeds API GL-5 specifications, ensuring premium quality and reliability for your vehicle.
- • **Maximize Mileage & Efficiency:** Boost differential efficiency for better fuel economy and longer-lasting performance.

## Overview

Red Line's 58204 Heavy ShockProof Gear Oil is a fully-synthetic 75W90 lubricant crafted from polyol ester base stocks, delivering exceptional protection and efficiency for high-performance differentials. Ideal for racing and specialty applications, it exceeds API GL-5 standards and extends drain intervals, making it the go-to choice for professionals demanding peak gear performance.

## Description

These products on exceptionally high order fulfillment rates, breadth of available products and these are also complete line of Heavy-Duty Shop Products that will bring you years of reliable performance.

Review: Questo olio per differenziale è veramente fantastico e mantiene ciò che promette. E' bene ricordare che è un olio per differenziale e non va usato nei cambi con sincronizzatori. Leggere le indicazioni di utilizzo e la scheda tecnica, sono chiare e ben fatte.
Review: My 3rd gear synchro was failing and grabbing and gridning getting in to gear, after a bit of reading I decided to try this and it fixed my gearbox and saved me $1000s.

## Features

- FULLY-SYNTHETIC FORMULAS - created from polyol ester base stocks, offer excellent lubrication under extreme conditions
- ENGINEERED TO PROVIDE - the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear, exceed API GL-5 specifications
- NOT RECOMMENDED - for most synchro applications due to the product's extreme slipperiness
- POPULAR GEAR OIL FOR - Many performance racing applications like Sprint, Midget, Dirt Late Model and Quick Change Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear ends, most popular ShockProof product, many racing and specialty applications
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Red Line |
| Brand | Red Line |
| Model | Redline |
| Product Dimensions | 22.86 x 9.88 x 9.83 cm; 771.11 g |
| Item model number | 58204 |
| Exterior | Painted |
| Manufacturer Part Number | 58204 |
| OEM Part Number | 58204 |
| Item Weight | 771 g |
| Viscosity | 75W90 |

## Product Details

- **Material:** Synthetic
- **Brand:** Red Line
- **Package information:** Bottle
- **Liquid volume:** 32 Fluid Ounces
- **Item weight:** 771 g

## Images

![58204 Heavy ShockProof Gear Oil - 1 Quart Bottle - Image 1](https://m.media-amazon.com/images/I/71GC5ofv8fL.jpg)

## Questions & Answers

**Q: What viscosity is this particular oil?**
A: Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90For heavily-loaded racing differentials and transmissions, problem gearboxesMany performance racing applications like Sprint/Midget/Dirt Late Model Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear endsNot recommended for most synchro applications due to the product's extreme slipperiness

**Q: What is the viscosity of this? Need a specific number.**
A: Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90. This is from the manufacturer's site.

**Q: Canged primary chain OIL of my 2002 RoadKing ScreamingEagle I made a MISTAKE! Added REDLINTransFluidw/Shockproof. IS It COMPATABLE**
A: I would think not.  As the primary runs a 20w 50 and the red line is something like 75 90 it's going to a lot thicker.  I would call a local Indy not HD and ask them for sure.

**Q: Is this GL5?**
A: It exceeds API GL-5 specifications.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by N***C on 6 June 2021*

Questo olio per differenziale è veramente fantastico e mantiene ciò che promette. E' bene ricordare che è un olio per differenziale e non va usato nei cambi con sincronizzatori. Leggere le indicazioni di utilizzo e la scheda tecnica, sono chiare e ben fatte.

### ⭐⭐⭐⭐⭐ Review
*by 3***0 on 7 March 2020*

My 3rd gear synchro was failing and grabbing and gridning getting in to gear, after a bit of reading I decided to try this and it fixed my gearbox and saved me $1000s.

### ⭐⭐⭐⭐⭐ Review
*by T***Y on 1 November 2016*

Used this in my 1999 Subaru Impreza Outback Sport with noisy front and rear differentials. I threw some mobil0-1 75w-90 in each diff for about 1k miles to rinse things out. Just dropping the beat-up, dark diff fluid and going to Mobil 1 was a marked improvement alone. After running that sacrificial fluid for 1k miles, I drained it (and it was in much better shape, but still appeared QUITE DIRTY) and installed some Lucas full synthetic 75w-90 gear oil with about a half of the Heavy Shockproof quart going into the front and a half going into the rear diff. I put the Redline in first so it would mix better. Both my front and rear differentials are OPEN (not LSD; if you have an LSD, DO NOT USE this redline shockproof series). Immediately, I noticed that the diffs were notably quieter and that the car even accelerated and coasted more easily than even with the mobil-1 gear oil. I used the heavy shockproof because I'm in Florida and it never gets very cold here (it dips below freezing for a few hours, a few nights of the year, but only just below). If you are not in a southern state (FL, Texas, AZ, NM, LA, etc), I would advise selecting the lightweight shockproof instead. Overall, I'm extremely satisfied. If you have an open diff, or an air locker (anything but an LSD), you owe it to yourself to add a portion of shockproof to your diff. Quieter means cooler. That's always a good thing. Also, NEVER add this to any transmission. Even a manual. Your synchros will be permanently too slippery to work properly.

## Frequently Bought Together

- Red Line 58204 Heavy Shockproof Gear Oil - 1 Quart
- Red Line 42904 V-Twin Primary Case Oil, for use with UTVs, ATVs and Sportbikes - 1 Quart
- K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Harley Davidson Motorcycles, KN-171B

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-01*