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Old 08-16-2017, 4:45pm   #7
knewblewkorvette
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Quote:
Originally Posted by Y2Kvert4me View Post
This is the correct one for a C5, that fits w/o modification:
OPTIMA® Batteries 8022-091 75/25 REDTOP® Starting Battery :: OPTIMA® Batteries

The 75/25 is the group size, and is all you need to remember if you're headed to a store to buy one.
They also make a larger 34/78 size, which will physically fit in the battery compartment, but it requires a different clamp (avail from Optima) to secure it.


I used to have a red top, but after it failed, and receiving poor warranty service about it, I quit buying Optima. IMO, their quality isn't what it used to be, and they aren't worth the premium price.
Nope, I got/had 34/78s in both my 98 and 02 and I use the stock clamp. Perfect fit.
I've had MUCH better luck with the yellow top over the red top.
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