[Note: this is #11 of a series of 20]
Don’t let stuck cogs interfere with wheel rebuilds.
When rear wheels need new rims and/or spokes, stuck cogs (or freewheels or cassettes) can prevent introducing new spokes. Gears sit near the drive side hub flange and you can’t get spokes in or out when they’re in place.
With multi-speed hubs and coaster brakes, the solution is to disassemble the hub. Remove the axle and all guts. Out comes the driver with the cog. The empty hub shell can easily be laced with a new rim. Now, reassemble the hub and finish the build. Reassembled, the hub will rotate accurately and you can true your wheel.