Originally Posted by
slynkie
I got the drive-side off (just an 6mm allen), but I can't get the other crank off.
Soak the join in Liquid Wrench starting ASAP. Even if you can't get it off it will help the LBS.
Originally Posted by
slynkie
i'm also not entirely sure how to take the headset off...or, actually, that I even need to),
Yeah, you should. I believe the knurled and embossed ring unscrews. Try a pipe wrench with some shop rag padding. A pipe wrench is less likely to slip and scar than something like pliers.