<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>The transmission you have should be a 4L60-E, this is an electric shift
<BR>tranny. Either of those PCM's are the same. The 7427 is the most up to date.
<BR>Getting the PCM out is a piece of cake. Open the glove box and unhook the
<BR>limiter strap, its a little plastic line. Then squeeze the tabs keeping the
<BR>door from opening any further, now the door will rotate the rest of the way
<BR>off. Disconnect the PCM connectors and remove it.
<BR>The eprom is a 27512 type. Read the broadcast code off of it and you can get
<BR>it ID'd here.
<BR>AL
<BR>
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