Differential Codes

To find the differential codes take the rear cover off the rear end and look for some numbers stamped into the outside of the ring gear. If your gears have not been changed these codes may be on the right axle tube next to the differential.

1979 Codes

Code	Open/Limited slip	Gear Ratio
2PJG	Open	2.41
2PSG	Limited Slip	2.41
2PHG	Open	2.56
2PTG	Limited Slip	2.56
2PCG	Open	3.08
2PWG	Limited Slip	3.08
2PDG	Open	3.23
2PXG	Limited Slip	3.23
2PY	Limited Slip	3.42

1980

Code	Open/Limited slip	Gear Ratio
2PJ	Open	2.41
2PS, 5PV	Limited Slip	2.41
2PH	Open	2.56
2PT	Limited Slip	2.56
2PC	Open	3.08
2PW	Limited Slip	3.08

© 1998-2008 78blackbird@thepontiactransampage.com
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