Last time I did mine, on my K20, I didn't even drop the pan. I just let it sit on the crossmember. I jacked it up slightly, until the distributor ran out of runway. I was able to get the pan and block cleaned up and slid the gasket in from one side of the pan under the crank and dobbed some sealant on the four corners pressed the gasket up there and buttoned it up. I made pretty quick work of it. No leaks been probably close to 8-10 yeas now on this truck. Get a good fel-pro gasket.
Bottom line, not hard. With a little caveat: if you have not done an oil pan gasket before find a how to so you know where to place the sealant on your specified gasket, as that is needed for no leaks.
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