Hey Scotty, I was working on my 98 Tahoe it was acting wierd took it to Advanced Auto and they said alternator went bad. I bought a new one and put it on in the parking lot. I went to start my truck up and i tripped the security! I've taken it to a few shops including a dealer and none have been able to fix it what should i do? I dont want to sell it as it has 0% rust (i live in northern indiana so its hard to find that. I was wondering if there was a way to tune the security off like you do when swapping an ls motor.