Battery cables and battery choices

[AnlaufJohn]

I am needing a new battery. The old one was in the truck when I purchased it. It is now 8 years old and struggles to spin the starter, dropping down to less than 8 volts when cranking. I used to work in a shop, so I understand voltage and amps, so the best I can describe its behavior is of a tree that has a rotten core. Hollow inside, but strong bark on the outside.
This battery is side-terminal and I wonder if I should change over to top terminal, just because that's what my 1966 C-10 would have had in it back in 1966?
The side-terminal design lessens the acid corrosion at the terminal, and I want this to be trouble-free.
I know the Group 24 will fit, but an option that presented itself when I called about batteries was a dual terminal battery, one with side and top terminals.
Ooh!! The dual is a group 78 and is a bit shorter, so it will still fit.
My question to the forum is: which battery and which terminal?
Group 24 is top only, Group 78 is dual, thus the choice.
Thank you,
John

[aerotruk63]

Sometimes we put to much thought into the simplest things. How are you building your truck? Original or all out tech?

[AnlaufJohn]

I am trying to keep it looking as stock as possible, but making improvements where they make sense. I have upgraded the wiring, all the way to the tail lights. HEI is pending, as is a toss-up between QuadraJet or FI.
I know the battery is at its end, straining to get those pesky electrons to the starter.
I may end up jumping the silly thing, but this will be a daily/weekly driver for me.
John

[jtrichard]

you are already wired for side i would stick with that ;it is better then post ... you are NOT making a showroom floor model.... I have a 63 that i am doing suspension upgrades and diesel But the outside and in the cab will look all original

[AnlaufJohn]

jtrichard,
Thank you for sharing the idea of staying with the side terminal connections.
Corrosion is less on side mount and since I already have OE type cables (molded cable ends), I don't need the top mount for any reason that I can justify.
The old battery was tested and was on the border between good and bad, just shading the good side. It is now a core and the new battery is installed.
That starter zings now. Music to my ears.
John