Join Date: Mar 2010
Location: Stoney Creek, Ontario
850 are just fine. Use 1000's if you can find decent one's. Marines work best. Lower gauge wire meaning heavier. Make a ground to the starter bolt and one to the altenator bracket with nice clean heavy connections, use brass battery clamps and keep the batteries clean and you should never have issues for years.
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The Past - 1976 F-350 Crew Cab 1992 - 2006 RIP
The Past - 1995 F-150 XL Enforcer All Gear Drive 2008 - 2015
The Present - 1993 F-250 XLT Turbo Diesel Super Cab 4x4 2015 - ?
The Future - Who knows?