http://www.fullsizechevy.com/forums/...placement.html
The updated stepper motor part # is X25 168 bad OEM # X C5 168
this is a super easy fix took about 45 min to replace 3 motors
speedo was stuck at 120+ MPH, tach was dead and oil pressure was pegged out. if your gonna replace one just go ahead and replace them all 10$ a pop, i did 3 and now my fuel gauge went out
http://www.fullsizechevy.com/454ss/colby04.gif
longest part about this job was waiting for the soldering iron to heat up. wish i would have done this a long time ago, 04 tahoe Z71 hope this helps somebody.. instructions are in the link above.
mandigital <~~~~~ seller on ebay who sells the good ones.
WHIZZO