Alternator Removal - been researching but a bit stuck

[Lanark]

Originally Posted by dghii

It comes out the front. Soak the bolts with PB Blaster, remove bolts and maneuver the alternator around the collar and out the front. Once loose, you can disconnect wiring and finish the removal.

Thanks for confirming.

I have two bolts out.

One at the lower left as you look at the alternator

The other on the pulley. I have removed the pulley and the belt. I understand the suggested way is for the collar to come out on the shaft with the pulley but I don't understand why that has to be the case or why the alternator won't come out with that collar still in place.