I usually use advance auto batteries. If you order online, you can get a good discount if you do a google search. Got $90 off the 2 batteries for my truck this fall

I am an interstate fan also, that's what we sold at our garage and I run in my ta.

68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram