Still working on that 96 4.3lxh and I was just curious if it was necessary to pull the engine in order to remove the oil pan...I have tried to drop it removing 6 bolts on either side but I suspect that there are a couple of bolts under the flywheel cover near the rear main. If it is necessary to pull the engine would anyone have a recomendation on where to buy a reasonably priced alignment tool? Thanks for all of your help.