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SKU: RED-57104

Red Line 75W-140NS GL-5 Gear Oil - 1 Quart

$24.99

In Stock

SKU: RED-57104

Red Line 75W-140NS GL-5 Gear Oil

  • Contains extreme pressure additives like our 75W-140 GL-5 oil, but lacks friction modifiers to balance slipperiness
  • Popular for historic and vintage transmissions, like Mid-1930s to early-1950s synchro-equipped gearboxes in cars and trucks
  • Helps with noisy or rough shifting in troubled A-833 Dodge/Plymouth 4-speed transmissions from 1964 to 1969
  • Option for noisy transmissions when mixed with 75W-90NS or MT-90 to bring viscosity level up
  • Also used in clutch-type limited slip differentials in racing for maximum lock up-some users add Limited Slip Friction Modifier in small doses to customize slippage

About Red Line Gear Oil for Differentials

  • Full-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
  • Exceed API GL-5 specifications
  • Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals and less wear

Recommended For:

API GL-5 & MT-1

MIL-PRF-2105E

SAE J2360

Rockwell 0-76-C

Used in SAE 140 Applications

Historic & Vintage Synchro Transmission

Safety and Product Data Sheets

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov 

See More

Specification

Data about Red Line 75W-140NS GL-5 Gear Oil - 1 Quart

Description

Red Line 75W-140NS GL-5 Gear Oil

  • Contains extreme pressure additives like our 75W-140 GL-5 oil, but lacks friction modifiers to balance slipperiness
  • Popular for historic and vintage transmissions, like Mid-1930s to early-1950s synchro-equipped gearboxes in cars and trucks
  • Helps with noisy or rough shifting in troubled A-833 Dodge/Plymouth 4-speed transmissions from 1964 to 1969
  • Option for noisy transmissions when mixed with 75W-90NS or MT-90 to bring viscosity level up
  • Also used in clutch-type limited slip differentials in racing for maximum lock up-some users add Limited Slip Friction Modifier in small doses to customize slippage

About Red Line Gear Oil for Differentials

  • Full-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
  • Exceed API GL-5 specifications
  • Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals and less wear

Recommended For:

API GL-5 & MT-1

MIL-PRF-2105E

SAE J2360

Rockwell 0-76-C

Used in SAE 140 Applications

Historic & Vintage Synchro Transmission

Safety and Product Data Sheets

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov 

At a Glance

Brand Red Line
Part # / SKU RED-57104

Product Data Sheets

Downloads and manuals associated to Red Line 75W-140NS GL-5 Gear Oil - 1 Quart

Available Variants

Different variants associated to the Red Line 75W-140NS GL-5 Gear Oil - 1 Quart

  • $24.99

  • In Stock
SKU:
RED-57104
Product Description
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$24.99

In Stock

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Frequently Asked Questions

What vehicles is Red Line 75W-140NS GL-5 Gear Oil - 1 Quart compatible with?

Use the specifications and images on this page together with your vehicle details. Match part number RED-57104 to your existing component or OEM interchange.

Explore similar Fluids & Lubricants to find the right fit for your car, truck, SUV, or powersports vehicle. See more Red Line products we carry.

What is Red Line 75W-140NS GL-5 Gear Oil - 1 Quart used for?

Red Line 75W-140NS GL-5 Gear Oil - 1 Quart from Red Line is intended for normal automotive service and maintenance—such as brake pad and rotor service, oil and filter changes, or other listed applications—depending on how this SKU is categorized. Follow your owner’s manual and any torque or fluid specs printed on the packaging.

Discover complementary items in our Fluids & Lubricants collection and Lubricants & Grease.

Is this Red Line 75W-140NS GL-5 Gear Oil - 1 Quart an OEM or aftermarket part?

This listing is an aftermarket replacement manufactured or branded by Red Line, engineered to meet or exceed typical OEM performance for the applications described. It is not necessarily a dealer-original part unless the description states otherwise.

Compare alternatives in Fluids & Lubricants if you need a different formulation, kit, or price point.

What is included with Red Line 75W-140NS GL-5 Gear Oil - 1 Quart?

You receive the Red Line 75W-140NS GL-5 Gear Oil - 1 Quart (SKU / part number RED-57104) as shown in the photos and bullet points. Kits may include filters, gaskets, hardware, or fluids; single components include only that item. Open the Specifications and Includes areas on this page to confirm quantity and contents.

How do I install Red Line 75W-140NS GL-5 Gear Oil - 1 Quart?

Installation steps depend on the part type (for example, brake pads versus an oil change kit). Work on a cool vehicle, use proper jack stands and tools, torque fasteners to spec, and bed brakes or prime filters per the manufacturer’s instructions. If you are not experienced with suspension or brake work, use a licensed technician.

Find related service items in Fluids & Lubricants. You may also consider Red Line 75W-110 GL-5 Gear Oil - 1 Quart or Red Line 75W-90 GL-5 Gear Oil - 1 Quart.

What warranty or return policy applies to Red Line 75W-140NS GL-5 Gear Oil - 1 Quart?

New, uninstalled items are generally eligible for return within the time window posted in our store policies, provided they are in resalable condition. Reference your order and SKU RED-57104 when contacting support. Defective or incorrect shipments should be reported promptly with photos when possible.

Need a different fitment? Browse Fluids & Lubricants for other compatible options.

How long does shipping take and when will Red Line 75W-140NS GL-5 Gear Oil - 1 Quart be available?

Many in-stock orders ship the same business day when placed before the warehouse cutoff. Transit usually takes about 2–5 business days in the contiguous U.S., depending on carrier and destination. Availability is shown near the add-to-cart button on this page.

Shop additional in-stock choices in Fluids & Lubricants.

How do I double-check that this part fits my vehicle?

Cross-check year, make, model, engine, and trim with the fitment data on this page, your old part number, and SKU RED-57104. When in doubt, verify with a dealer parts catalog or qualified mechanic before opening packaging.

Similar listings: Red Line 75W-110 GL-5 Gear Oil - 1 Quart and Red Line 75W-90 GL-5 Gear Oil - 1 Quart. Explore the full Fluids & Lubricants category for oil change kits, brake parts, filters, and more.

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