Join Date: Aug 2003
Location: Lebanon, OR
Feedback Score: 0 reviews
The single alternator should be able to maintain charge in both batteries if the batteries aren't bad.
If you have the original batteries in the truck still, you can look at the little "eye" between the battery posts. If the batteries are good you should see green or red if they are heading south. I just replaced mine last week with Duralast Golds from Autozone. $100 apiece, but with 3 year full replacement warranty and 8 year prorated warranty, they are worth it in my opinion. I plan on keeping my truck long term.
2005 F-350 Crew Cab,6.0L,Auto,4x4,King Ranch,White and Arizona Beige,Edge Evolution, MBRP 4" exhaust, 2.5" Donahoe Racing leveling kit,LT305/70-18 Dick Cepek Mud Countrys,Pro Flaps,Husky Liners,Draw Tite gooseneck hitch.
Sold: 2000 F-250,4x4,SC,XLT,Island Blue,Auto, Autometer Z-series Pyro, Tranny, and Boost gauges,
AFE Magnum Intake with Pro-Guard 7,TS 4-position (stock-50-75-140) Flip Chip,DPPI 4" exhaust w/ 3.5" downpipe,Sonnax/Tricumulator springs mod, TruCool Max,Edge 3" leveling kit w/4" blocks,16.5x9.75 Weld Typhoons,35x12.50x16.5 BFG A/T, Westin chrome nerf bars,Pro Flaps,B & W Turnover Ball,Husky Liners.