Not surprised Vern, a gp. 24 is at least 3/4" to nearly 2"
larger that the gp. 1, depending on who's chart your looking
at. It would have the same CCA rating that the gp. 1 has.
You definitely would, have to modify the tray in order to get it
in the hole. The stock hold down bolts are spaced around 10"
and the opening in the floor is only 11 1/4". So what did you
do for a hold down?
Let me clarify the object of this post, we were aiming at
finding a direct 12v swap for the gp. 1 without any mods.
Again, it's not my truck, just askin' for a buddy.
If I were doing this and if I were adding a bunch of 12v powered
items like power windows, bear claws, AC, earth shaking boom
box and such, I'd probably opt to move the battery out on the
cowl where the later ones were, like some guys have done. At
that point there would be enough changes made that it would
just be a shadow of an Advanced Design Chevy truck anyway, so
who cares where the battery sits.
Just the purist in my talkin'.
Denny Graham
Sandwich, IL

Last edited by Denny Graham; 01/03/2014 12:51 PM.

Denny G
Sandwich, IL