While they are in there, ask about a towing kit to put in the trans. It will shift a little harder, but the trans will last longer. You may want to upgrade the cooler also. And using the BG trans additive doesn't hurt either. We had fleets of Ford vans that would puke a trans after 100,000 miles. Started flushing the trans at 25k and using BG, the trans would last 300k. I am a firm believer of BG products.