Torsen differential information:

  Customer Part Num.: GM10/ZT30
  Customer: Reider Racing
  Application(s):   Chevrolet Camaro / Pontiac Firebird (F-Car Series)
  Rear Axle Ratio(s): Please contact Reider for this information!
  Torsen Part Number:   975420-0840B
  Torsen Diff. Type: T-2
  Bias Ratio: 2.2:1
  Differential Size:   8.5" / 8.6"
  No. of R/G Bolt Holes:   10
  No. of Splines:   30
 

Click here for a picture of dimensional schematic.

  MM / Inch
  Dimension A: 180.00 / 7.087"
  Dimension B: 127.03 / 5.001"
  Dimension C1: 45.30 / 1.783"
  Dimension C2: 45.30 / 1.783"
  Dimension D1: 34.26 / 1.353"
  Dimension D2: 34.26 / 1.353"
  Dimension E1: 20.83 / 0.820"
  Dimension E2: 20.83 / 0.820"
  Dimension F: 23.08 / 0.909"
  Dimension G: 151.73 / 5.973"
 

Dimensions are for REFERENCE only!