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Red Line 75W‑90NS gear oil (quart) is formulated for transmissions and transaxles to slow synchros for easier shifting across a broad temperature range while also supporting clutch‑type differentials when tuned with Red Line Limited Slip Friction Modifier. Containing extreme pressure additives but lacking certain friction modifiers, it helps with lock‑up on weak LSDs, suits muscle car manual transmissions and transaxles, and offers improved copper corrosion protection to prolong synchro life.
Red Line 75W90NS Gear Oil - Quart
