R200 Diff Source Cars

3.54:1 ratio: 1991 – 1996 Infiniti Q45 with traction control. (Ones without traction control have ABS sensor on nose making nose ½” longer.) Has 6 bolt axles.. Early have finned cover. Later ones have smooth cover

3.69:1 ratio: 1997 – 2001 Infiniti Q45. Has 5-bolt axles, smooth cover

4.08:1 ratio: 1990 – 1996 300ZX non turbo. Has 5-bolt axles. Early ones have finned cover. Later ones have smooth cover.