The realm of automotive technology is rife with jargon and acronyms, from ABS (Anti-Lock Brake System) — which first appeared in 1978 — to ZEV (Zero-Emissions Vehicles). Sitting squarely between those two alphabetic extremes in the glossary of automotive terms is LSD, which stands for Limited-Slip Differential. This feature is known by different names depending on the brand of vehicle it’s in.  Chevrolet brands its stock limited-slip differentials as Positraction axles, Ford uses the Traction-Lok label, American Motors (AMC) referred
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