Locate the particular OE #'s as indicated below on the OE differential tag. Enter one or more #’s into the decoder. If the tag is not present, continue to the next parameter.

DANA/SPICER/EATON/INTERNATIONAL FRONT, REAR TANDEM & SINGLE

MACK FRONT, REAR TANDEM & SINGLE

MERITOR/ROCKWELL FRONT, REAR TANDEM & SINGLE