Is it possible to separate a coupler from inside an agitator outside of the washer?

I have an older model GE WDSR2080D washer. A towel or something was stuck underneath the agitator and a friend attempted to fix it by yanking hard on it. The agitator, the coupler, AND the bolt ALL came off together. Is there a way to remove the coupler from inside agitator without ruining both? The top of the agitator has a built in lint trap making it impossible to reach the bolt that way. Is it likely the bolt is broken too? I can’t tell by looking at the motor shaft. Please help! Money’s tight and I’d like to fix this myself if possible instead of calling a repairman. Thanks!

Thanks for replying Richappy! How would I tell if the tranny spindle has rusted? It does not look like it (just me visually looking at it) and I am still waiting on a replacement bolt to be delivered before I can try to attach my new agitator and coupler. If it will not attach is there a way to replace the spindle or is it a lost cause?

If the spindle threads are rusted so bad that a standard bolt will not stay in, the only solution is to drill it out and tap in new threads for a larger bolt.
Wait till you get the new bolt, tranny spindle threads may be ok.