--- product_id: 702835063 title: "Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 4 Quarts" brand: "red line" price: "¥35899" currency: JPY in_stock: true category: "Red Line" url: https://www.desertcart.jp/products/702835063-red-line-50104-75w85-gl-5-full-synthetic-gear-oil store_origin: JP region: Japan --- # Friction modifiers optimized for limited slip differentials 75W85 GL-5 viscosity for ultimate gear protection Excellent low-temp flow for smooth cold starts Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 4 Quarts **Brand:** red line **Price:** ¥35899 **Availability:** ✅ In Stock ## Summary > ⚙️ Shift into the future with Red Line’s synthetic edge! ## Quick Answers - **What is this?** Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 4 Quarts by red line - **How much does it cost?** ¥35899 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/702835063-red-line-50104-75w85-gl-5-full-synthetic-gear-oil) ## 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 - • **Cold-Start Champion:** Ensures rapid lubrication and effortless shifting even in freezing temperatures. - • **Race-Ready Performance:** Trusted by Formula racing teams for maximum power transfer and durability. - • **Unmatched Gear Defense:** Delivers the highest film strength to protect your drivetrain under extreme conditions. - • **Extended Drain Intervals:** Stable at elevated temps and compatible with synthetic and petroleum oils for longer service life. - • **Seamless LSD Compatibility:** Built-in friction modifiers eliminate the need for extra additives in clutch-type limited slip differentials. ## Overview Red Line 50104 is a premium 75W85 GL-5 full synthetic gear oil engineered for hypoid limited slip differentials and high-performance drivetrains. It offers superior low-temperature flow, exceptional film strength, and built-in friction modifiers for clutch-type LSDs, making it ideal for both street and competition use. Compatible with a wide range of vehicles including BMW, Ford, Lexus, and race transaxles, this oil reduces wear, improves shifting, and extends drain intervals, ensuring your drivetrain runs cooler and lasts longer. ## Description RED LINE SYNTHETIC GEAR OILS Designed to provide the highest degree of protection and greatest efficiency for your drivetrain. Red Line provides a complete line of drivetrain lubricants which are optimized for differential, transmission, or transaxle use over a wide range of temperatures. Red Line LightWeight Gear Oil - a 75W/80W GL-5 gear oil designed to lubricate transmissions and transaxles which recommend 80W GL-5 gear oils. It has excellent low- temperature flow which allows easier shifting when cold. Also has good synchro compatibility. May be used to obtain maximum power transfer in racing differentials which do not see high temperatures. Provides the greatest gear protection available * Reduces differential and gearbox temperatures * Increases differential and gearbox durability * Rapid lubrication even in very cold weather * Improves shifting in manual transmissions * Provides improved drivetrain efficiency * Prevents foaming even at high speeds * Low corrosiveness reduces synchronizer wear * Stable even at elevated temperatures * Highest film strength available * Can be used in limited-slip and regular differentials * Suitable for competition and street use * Compatible with petroleum and other synthetics * Compatible with seals designed for petroleum * Satisfies requirements calling for API GL-5 and GL-6 * Allows extended drains in non-warranty vehicles ## Features - SATISFIES REQUIREMENTS - for gear oil viscosity of SAE 75W80, 75W, 80W and 85W, as well as SAE 30 and SAE 10W30 motor oil - APPLICATIONS - include differential oil, final drive oil, gear oil and transfer case fluid, this product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems - CONTAINS - additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required, known formerly as LightWeight Gear Oil - POPULAR GEAR OIL FOR - in many late model BMW, Dodge, Ford, GM, Jeep, Lexus, Mercedes-Benz, Ram, Toyota, also popular in many Formula racing transaxles, including Hewland LD-200 and FTR sequential - WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01LOJT8UI | | Best Sellers Rank | #1,217 in Automotive ( See Top 100 in Automotive ) #4 in Gear Oils | | Brand | Red Line | | Brand Name | Red Line | | Compatible Material | Synthetic | | Container Type | Quart | | Customer Reviews | 4.9 out of 5 stars 1,401 Reviews | | Included Components | GL-5 Gear Oil | | Item Form | Oil | | Item Weight | 6 pounds | | Liquid Volume | 4 quarts | | Manufacturer | Red Line | | Model Number | 50104 | | Number of Items | 4 | | Number of Packs | 1 | | Package Information | Quart | | Part Number | 50104 | | Recommended Uses For Product | Automotive | | UPC | 083522501446 | | Unit Count | 128 Fluid Ounces | ## Product Details - **Brand:** Red Line - **Item Weight:** 6 pounds - **Liquid Volume:** 4 quarts - **Package Information:** Quart - **Recommended Uses For Product:** Automotive ## Images ![Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 4 Quarts - Image 1](https://m.media-amazon.com/images/I/71XbhvbssUL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Frequently Bought Together - Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 4 Quarts - Red Line 50604 MT-LV 70W/75W GL-4 High-Performance Full Synthetic Gear Oil Lubricant for Manual Transmissions & Transaxles - 1 Quart - 12157-10010 90430-24003 90430-18008 Differential and Transmission/Transfer Case Drain Plug Crush Washers Gaskets Compatible with Toyota 4runner Tacoma Tundra FJ cruiser Land Cruiser --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/702835063-red-line-50104-75w85-gl-5-full-synthetic-gear-oil](https://www.desertcart.jp/products/702835063-red-line-50104-75w85-gl-5-full-synthetic-gear-oil) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-25*