Cranking amps are the most important thing. Measure your trays and buy the biggest one that fits. Make sure they are not too tall and ground out on the hood. The closer to 1,000 cranking amps you can get the better. Walmart has a good battery and the guarantee is good and they are everywhere. A brother-inlaw, a mechanic for over 30 years says walmart is all he uses. I have never had a problem with Interstate batteries. Used them in Semi's motorcycles and my own and wifes cars. Now I go to the closest of the two places.