Get your Big Breaker Bar and Big Socket which fits the crankshaft pulley nut. Find a solid place on the driver's side to brace the breaker bar against. Usually best to use a piece of wood to cushion.

Pull the fuel pump relay or fuse so the engine won't start. Then, with the socket on the pulley bolt, and the breaker bar firmly braced, turn the ign momentarily to "Start". Don't leave it there, just a quick 'tap'.

This should knock that bolt loose lickity-split!

HTH.........ed

'90 Troop 3.4 LS
'89 Troop RS (Has Valve Issues, needs Counseling)
HI, I'm Ed and I'm a Trooper-holic!
Keep On Troopin'......