[FWDLK] Sure Grip introduction

[Wayne Graefen <wgraefen@xxxxxxxxxxxxxx>]

Regarding "Sure Grip", it is true that it became a Mopar option for the 1958 model year.  However, in 1957, the very same thing was offered as a "limited slip differential" which of course, is the generic term for what it really is.  Mom Mopar just needed the introductory year of '57 for their marketing department to develop a name for the option. 

Similarly, GM had "Pos-a-traction", Ford had "Equa-lock", Studebaker had "Twin Traction", etc.

 

Wayne

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