I will be replacing the battery in my truck with a new unit, and need to know how to select the correct size battery.

Truck has a bit more electrical drain than a normal truck that is not used for pulling (large trailer, lotsa lights and accessories.)

Any particular brand maintenance free battery that is noteworthy?

Thanks,
-Mike

 

What year of truck is this? Most f150's from 87 on use a group 65 battery.

 

It's a '91 with the 302. I can't remember the rule... something about engine size dictates battery size...

-Mike