battery group/size
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
I have never figured what the heck group size was either. I look at post location, 525 CCA or more if you like and have been using least expensive battery that I could find. Replaced one in my 66 a couple years back that had been in it for 9 years. I think it is a waste of money to buy expensive batterys.
John
John
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Sez the man from North Carolina.. Somebody from North Dakota may think differently. I agree though people probably buy way more battery than they need.
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Joined: Jan 2005
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Laughing Gas
Joined: Sep 2003
Posts: 968
Likes: 5
From: Corbett, Oregon
A group 27F is the correct battery for your truck. The "F" designation gives the battery the reversed terminal locations ((+) closest to the solenoid) so the battery cables don't have to cross. A group 27 will fit, but the (-) terminal will be near the solenoid.
The battery group refers to the physical size of the battery, not the electrical capacity. Just because the group number is a larger number doesn't indicate the battery is physically larger or has higher amp hour capacity.
The battery group refers to the physical size of the battery, not the electrical capacity. Just because the group number is a larger number doesn't indicate the battery is physically larger or has higher amp hour capacity.
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Freshman User
Joined: Jan 2005
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Thanks for all the input guys, but I decided to go with a group 36 batt. I did find the group 27f mentioned here but I liked the way the 36 filled the battery tray. Dimensionally it's just slightly larger than the 27 but I got a few more CCA's.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
for such a large truck originally equipped with a 360.R-22F was the smallest battery, R-24F was the medium size. Neither should be used with an FE engine.
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