180° or 270° servo?
 

I'm looking to pick up a couple of replacement servos for my boys TRX4 Sport trucks and a couple to have on hand for spares. I see most of the servos I've looked at list that they're either 180° or 270°. Should I assume that I would want the 180° servos, especially if using the stock Traxxas radio that doesn't have end point adjustments? Thanks!

stock is only 60 why go with those.id stick with 60