apparently you didn't get the right oil pan for your model chevelle.
take the engine out is the easiest way but you can try lifting the engine high enough to get to the bolts and hope the pan clears the suspension.
you either have to jack the engine up high enough or the easiest way is to remove the engine.
lube the end of the dipstick and use a rubber hammer and pound it down into the oil pan.
You will need to drop the oil pan to change the oil pan on a Hummer 2. The oil pan is located in inside the oil pan. You also need to first drain the oil pan of the old oil before you drop the pan.
How do u change a oil pan in a97 jimmy
To change the oil pan gasket u need to raise the engine about a foot in order to get to the oil pan .
I need to no how to remove oil pan
drain the oil form the drain plug on the pan, then unbolt the pan, and change the gasket. Rebolt the pan and refill the oil. Good luck
bye takin the pan and draining the oil
It is on the lowest part of the oil pan. The pan that is on the bottom of the engine. Good Luck!
Begin by removing the oil from your oil pan. Remove the oil pan retaining bolts. Put a new gasket on your new oil pan and reverse the process.