only the trigger
Stevens come with the older style (non-accutrigger) trigger. Savages, for the most part, have the accutrigger. Some of the scope packages still do not have the accutrigger. Stevens will not accept the accutrigger, but but have other aftermarket options. I personally am not a huge accutrigger fan. Other than that, they are identical. I built my first Savage on a Stevens action last year. Couldn't be more pleased. Got a Boyd's thumbhole stock for $80 bucks. I have 4 barrels for it and a fifth on the way. I am getting ready to do the same thing for both of my boys. they are getting stevens 200 in 223 for starters to learn to shoot CF with. I have already picked up one 308 sporter new take-off for a deer round.
Have you decided what caliber for her yet?
luck, tiny