I used a two jaw, but i wound up just taking a saw and cutting the pulley off! lol Seriously I used a sawz all and cut it till it popped off and there was no damage to the shaft at all put the new one on and its much faster!
and what are your supporting mods to drop to a 3.4? or are we going to have a "guys, I just blew my motor, now what?" thread in a couple of weeks. Do you have a scan tool? what kind of KR do you have?
98 GTP Coupe- 180* T-stat, GMPP Front Sway Bar, Dual Aeroforce Interceptor's, TDC FWI, TDC Taylor 10.4's, ZZP SS Plog, ZZP 3" SS catted DP, ZZP MPS W/3.4, AL104's gapped @.055, 3800Perf. PCM