Posi Trac
Record Breaker
Joined: Jul 2005
Posts: 1,421
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From: Orlando, FL
RE: Posi Trac
ORIGINAL: Exchevy
Positrac and limited slip diff are the same thing, positrac is chevys trademarked name for a limited slip diff.
"In the 1950's and 1960's many manufacturers began to apply brand names to their LSD units. The most famous of these was Chevrolet's "Positraction". Since then, Positraction (often shortened to "positrac" or merely "posi") has become a genericized trademark for LSDs.
Positrac and limited slip diff are the same thing, positrac is chevys trademarked name for a limited slip diff.
"In the 1950's and 1960's many manufacturers began to apply brand names to their LSD units. The most famous of these was Chevrolet's "Positraction". Since then, Positraction (often shortened to "positrac" or merely "posi") has become a genericized trademark for LSDs.
Thank goodness for Hollywood!