96 Suburban Intermittent Stalling-3 yrs-no clues, Please Help!

Hello Everyone,
I have owned this 96 k1500 5.7L Vortex Suburban for 3 years. Problem: Intermittent stalling upon coming to a stop. When it stalls and I try to restart the engine, the starter can barely spin the motor. The timing is thrown so far advanced that it will literally fire the engine backward and grind the starter gear on the flywheel. I have killed about six starters so far. I took it to the dealership and after two weeks they are clueless. So far we have replaced: TPS, Ignition Module, Cam sensor, Crank sensor, ECM, and perhaps a few other things I don't recall at this time. If it would stall and simply restart, I could cope with it. The only way I have found to get it to start is when it stalls, pop hood, unplug the power source to the ignition coil, turn key and spin engine over for a few seconds, replug the power source to the ignition coil, and attempt a restart. Usually I don't have to do this more than once or twice.
I would appreciate any advice or suggestions as I am out of ideas. Thank you in advance.
Randy,
MindOfMush:banghead:
:confused:

Had this happen on my tahoe also 96 turned out being the coil connector. good luck