Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90 For heavily-loaded racing differentials and transmissions, problem gearboxes Most popular ShockProof product, many racing and specialty applications 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 Not recommended for most synchro applications due to the product's extreme slipperiness
I bought this Red Line Heavy Shockproof Gear Oil for my ATV, but it seemed to lose its effectiveness after just a couple of rides. I was expecting more durability given the price. Unfortunately, I might have to look for something else next time.
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Fatima Noor
Okay, but delivery took too long
The Red Line gear oil works as expected, but I was disappointed with the shipping time. It took over a week to arrive, which was frustrating because I needed it sooner. The product itself is good, just not sure I’d order online again if I need it quickly.
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Carlos Mendez
Solid choice for heavy-duty gear oil
I've been using the Red Line 58204 Heavy Shockproof Gear Oil in my truck for a few weeks now, and I can really tell a difference in the smoothness of the shifting. The 1-quart size is perfect for topping off between changes, and getting it in a 2-pack is so convenient. Definitely an upgrade from what I was using before!
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Aiden Walker
Best gear oil for my racing needs
Red Line's Heavy Shockproof Gear Oil is the best I've used for my race car. It holds up under pressure and keeps everything running smoothly. I love that it comes in a handy 2-pack. I feel more confident during races knowing I have solid protection in my gear. Highly recommended for performance enthusiasts!
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Emily Tran
Good oil, but the packaging was dented
I like the Red Line gear oil; it seems to work well with my differential. However, when it arrived, one of the bottles had a few dents. It didn't leak, but it did make me a bit nervous about the integrity. Still, the oil itself performed great!
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Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.