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SKU: RED-58204

Red Line Heavy ShockProof® - 1 Quart

$29.99

In Stock

SKU: RED-58204

Red Line Heavy ShockProof®

  • Film thickness greater than an SAE 75W-250, yet low fluid friction like 75W-90
  • For heavily-loaded racing differentials and transmissions, problem gearboxes
  • Many performance racing applications like Sprint/Midget/Dirt Late Model Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear ends
  • Not recommended for most synchro applications due to the products extreme slipperiness

About Red Line Shockproof Gear Oils

  • Unique lubricant with solid microscopic particles offers low drag/high protection
  • Relatively low viscosity, yet cushions gear teeth under extreme pressure
  • Helps to prevent tooth breakage, resists throw-off
  • Avoid use with pumps, coolers and filters as unique medium and affinity for metal can cause clogging
  • Designed for wet sump transmissions and differentials with splash lubrication

Recommended For:

Circle Track

Road Racing

Drag Racing

Off Road

Other Wet-Sump Splash Applications

Safety and Product Data Sheets

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

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SKU:
RED-58204
Product Description
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$29.99

In Stock

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Frequently Asked Questions

What vehicles is Red Line Heavy ShockProof® - 1 Quart compatible with?

Use the specifications and images on this page together with your vehicle details. Match part number RED-58204 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 Heavy ShockProof® - 1 Quart used for?

Red Line Heavy ShockProof® - 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 Heavy ShockProof® - 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 Heavy ShockProof® - 1 Quart?

You receive the Red Line Heavy ShockProof® - 1 Quart (SKU / part number RED-58204) 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 Heavy ShockProof® - 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 Superlight ShockProof® - 1 Quart or Red Line 80W Motorcycle Gear Oil with Shockproof® - 1 Quart.

What warranty or return policy applies to Red Line Heavy ShockProof® - 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-58204 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 Heavy ShockProof® - 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-58204. When in doubt, verify with a dealer parts catalog or qualified mechanic before opening packaging.

Similar listings: Red Line Superlight ShockProof® - 1 Quart and Red Line 80W Motorcycle Gear Oil with Shockproof® - 1 Quart. Explore the full Fluids & Lubricants category for oil change kits, brake parts, filters, and more.

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