[jbouchak]

LOOKING FOR INFORMATION ON WHAT YEAR Z,S USED 3.9,3.7 REARS.i UNDERSTAND THAT 260 AUTOS ALL CAME WITH 3.7 DIFFS.
ALSO SOME DATSUN TRUCKS COME WITH LIMITED SLIPS 4.33-4.11.DOES ANYONE KNOW THE YEAR-MODELS.PRIMARILY INTERESTED IN 180 OR 190 DIFFS FOR E-PRODUCTION CLASS IN SCCA