Note: We will be closed Thursday and Friday November 28th and 29th in observance of Thanksgiving. All orders placed after 4:00 pm CST on Wednesday, November 27th will not ship until Monday, December 2nd. 

INTERNATIONAL CREDIT CARDS: Unfortunately, our website does not accept international credit cards. If you have technical questions please call (707) 745-6100, for order questions please call customer service at (877) 918-5646.

 
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Gear Oil for Differentials

These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers (except NS) for proper limited-slip operation

75W85 GL-5 Gear Oil

Fuel efficient gear oil with friction modifier, used in Toyota, Lexus, and more.

75W110 GL-5 Gear Oil

A favorite of track day gurus, intermediate viscosity for consistent LSD operation.

75W140 GL-5 Gear Oil

Deals with high temps like no other gear oil. Popular for F-150, too.

80W140 GL-5 Gear Oil

An old-school viscosity that still out-protects the competition.

75W140NS GL-5 Gear Oil

Big protection but not slippery, for certain trans and diff applications.

Heavy ShockProof®

Top Fuel Dragsters use it. You might be a candidate, too.

Limited-Slip Friction Modifier

Chatter in your differential? An ounce or two of additional slipperiness might fix it.

UTV/ATV Gearcase Oil

Famed Red Line gear protection, but specifically for your Side-by-Side.