Weight of gas dryer drum? Kenmore 87071110
I don't have the exact weight, but I'm pretty sure it's well under 25 pounds.  That being said, it's quite large, so you're going to have to hold it at arm's length, which will make it feel heavier.  You'll also need to be able to reach deep inside the dryer to deal with the drum belt.  So, you may consider getting some help with this job if you aren't as limber as you used to be.  You can always try it and stop if you decide it's too much.