Redline Light Weight Shock Proof Gear Oil / Quart

Red Line 58404 LightWeight ShockProof Gear Oil – 1 qt

This is the gear oil your rear end wishes you’d been using all along. Red Line 58404 is a synthetic 75W80 with limited slip additive built in, and it plays way above its weight class. With the fluid friction of an 80W gear oil (or 30W motor oil), but a film thickness greater than a 75W140, it protects like a tank without slowing you down.

Cold mornings? No problem—exceptional low-temp flow and smooth shifting even when the paddock’s frozen over. It’s a favorite for Sprint, Midget, and Dirt Late Model diffs, Detroit Lockers, spools, and racing transmissions like Hewland, G-Force, Liberty, Bert, and Brinn.

It’s not just oil—it’s lightweight armor for drivetrains that live at redline.