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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Red Line Heavy ShockProof Gear Oil 58204Red Line Synthetic ShockProof Gear Oil provides unequalled protection for high performance differentials and transmissions which are heavily loaded or which see shock loading. This revolutionary lubricant is completely different from conventional lubricant technology in several ways. The viscosity characteristics are significantly improved. Gear teeth need high viscosity at high temperatures to prevent metal to metal contact and a low viscosity when
Red Line Synthetic ShockProof™ Gear Oil provides unequalled protection for high performance differentials and transmissions which are heavily loaded or which see shock loading. This revolutionary lubricant is completely different from conventional lubricant technology in several ways. The viscosity characteristics are significantly improved. Gear teeth need high viscosity at high temperatures to prevent metal to metal contact and a low viscosity when cold to reduce fluid friction. The ShockProof™ chemistry significantly reduces the thinning effect of high temperatures. The Heavy can be rated as a 75W250 Gear Oil, but has the lower internal fluid friction of an SAE 75W90. The Lightweight can be rated as a 75W140 Gear Oil, but has the lower internal fluid friction of an SAE 30 motor oil. The SuperLight can be rated as a 70W90 Gear Oil, but has the lower internal fluid friction of an Automatic Transmission Fluid. These ShockProof™ lubricants provide much greater viscosity in the thin layers between the gear teeth, but have very low internal fluid friction, which means very little power loss for the protection achieved. ShockProof™ Gear Oil has a 40 Percent lower coefficient of friction and 250 Percent the load carrying capacity compared to conventional gear oils, which means that metal to metal friction is greatly reduced. Temperature reductions between 25 to 75 Degree Fahrenheit are common in circle track, road racing, and off-road racing. Improved durability in high performance use is the primary benefit of the Heavy ShockProof™ and along with the improved durability is an improvement in efficiency, but if further improvements in efficiency are desired, and durability is not a major concern, Lightweight and SuperLight ShockProof™ can be used. Red Line ShockProof™ can be used in conventional, limited slip, or locker differentials. Red Line ShockProof™ is designed for use in competition differentials and transmissions.
Viscosity Grade: SAE 75W250, SAE 75W90
Use: Racing Differentials And Transmissions
Type: Synthetic
Unit Size: 1 Quart
Unit Type: Bottle
Features
- Film Thickness Greater Than An SAE 75W250, Yet Low Fluid Friction Like 75W90
- For Heavily Loaded Racing Differentials And Transmissions, Problem Gearboxes
- 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 550 reviews
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Product Reviews
★★★★★ 3
Lasted a day for my dog
Style: Original, Style: Original
My dog absolutely loved this toy, but sadly it didn’t even last a full day 😩 I’m not sure if that’s because I have a Rottweiler/Lab mix with the jaw strength of a tiny excavator, or if the durability just isn’t great. Within a few hours, he had already torn right through it 🥲 That said, the sound it makes had us cracking up and definitely kept my dog entertained and intrigued while it lasted!
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great toy!!!
Style: Original
My dog went mental over this ball!!! She will let me roll it through the backyard or in the house and she will go nuts for it but the great part, she will play by herself with this ball. She will roll it and jump on it and just have a blast.
Since this is not a normal chew toy, my dog's big, she only gets it when I'm with her. It kind of makes it our special thing when I pull it out. We play every day with it and her enthusiasm has never lessened. She can be in another room when I take it out of the cabinet and the second she hears it, she will run into walls in her rush to get to me so we can play! It really is better than just throwing a ball back and forth. She's completely engaged the entire time it's out.
I highly recommend it but just know it's not a normal toy that you can just throw to your dog and walk away. It is an amazing toy to help you bond with your pet.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Great for dogs that need to stay busy
Style: Original
My dog absolutely loves this ball. It is a little noisy so we take it out in the yard and let her play with it there. I highly recommend it if you have a dog that get bored easily. This will surely keep them busy.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Fun for the Dogs and Kids
Style: Original
My dog seems to love this ball. Super sturdy for an aggressive chewer. Easy to play with. Makes the tube sound when it rolls which keeps the dogs attention well. Super fun. It’s made out of hard plastic so it’s not soft at all. Can take this anywhere.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
A must have for active dogs
Size: Max Size, Size: Max Size
I normally do not write reviews unless a product is really good or really bad.
I have a dog that thinks chasing balls is the only thing in life and unfortunately she has a mom that has anchor pins in both shoulders.
We've been using this ball launcher for little over a year. It goes through about 32 dirty balls, 3 times a day and has held up amazingly. It is even full of dirt and still keeps on working, it looks like R2D2 went thru a battle. 😆
I recently bought a second one as a back up because I can't believe this poor thing hasn't given up yet.
I rotate the balls because my dog brings them back wet and muddy, then they won't launch as far, so I knock some dirt off of a dry one and launch it.
I would highly recommend this for active dogs.
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Reviewed in the United States on May 25, 2026
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