Hi,
Trying to fix my Dad's truck ('97 GMC Sierra) and it was diagnosed as needing an SDM 9378235. I can't seem to find this anywhere online, but a local wrecker says they have one.
Only problem is that he won't refund if it doesn't work, and I was told these modules may not be able to be programmed like the newer '99+ ones.
Anybody with experience with this?