[426Fred]

Forgive me if I am wrong but don't the big three (GM, Ford, and Chrysler) install batteries in the rear of a lot of their new vehicles now? Super Stockers have been running batteries in the rear only since the early 60's. If you pay attention to what you are doing and follow safe wiring practices too include the correct size positive and negative battery cables, you will be just as safe as only having one battery in the front.