Side Post Battery - Team Camaro Tech
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post #1 of 4 (permalink) Old Jul 29th, 18, 05:53 AM Thread Starter
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Side Post Battery

The AIM, if I am reading right, switched to a side post battery late in the production year. Looks better without the ugly cables on top and I use the side post anyway on my non original toys. Any thoughts.
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post #2 of 4 (permalink) Old Jul 29th, 18, 06:46 AM
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Re: Side Post Battery

Dates and switch-over are random, some vehicles based on regular duty or Heavy Duty got side post starting late March, early April 69 at Norwood, all others as time and stocks of top post ran out. I'm not sure of cut over date at the GMAD run plant in Los Angeles / Van Nuys but expect same or earlier for full cut over dates. The official service bulletin for Canada was released May 31 meaning by then 99% if not 100% switch over had been achieved at both assembly plants.

Original side post batteries had different diameter mounting bolts to prevent confusion of cables. 3/8 -16 for POS, 5/16 - 18 for NEG. Modern set-ups are the same for both POS and NEG terminals these days.

My Z11 had in the spare-parts box in the trunk a set of factory side post cables. Don't know if she came that way with those cables, but suspect yes. GM in 1971 went to both terminals being same size. She was wearing standard sized side post cables and battery at time of sale to me and under my Stewardship as caretaker she has always been side post battery and that has always been a problem - not in that the battery is bad, but as in most parts reference books at stores list the 69 Camaro as top post. Some have a little asterisks and no note like the Sears Die Hard catalog did before Sears faded away. At least my local AutoZone parts counter folks knew the change over happened and stocked the correct battery and the last three she has had were DuraLast Gold. The first battery I bought for her was AC/Delco dealer grade.

I think they are safer from accidental dead shorting caused by dropping a wrench but you can dead short a side post in the same manor. I think there is less a chance of Duh moments like resting a metal tool box, or the air cleaner cover on the terminals. LOL

So yeah I say I agree they are better aesthetically.

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post #3 of 4 (permalink) Old Jul 29th, 18, 07:23 AM
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Re: Side Post Battery

My 10E of 69 built has always been a side post in my ownership but both cables are the same bolt size. I got it in 1984 so probably had the negative switched out with a battery change. I don't recall having two different sizes of bolts back in the day but maybe most were gone by late 70's when I was a full time mechanic.

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post #4 of 4 (permalink) Old Jul 29th, 18, 08:14 AM
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My 05A Z had side post, so it sounds like your refrance is correct.

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1969 x-77 Z/28 orange/ white stripes, named by my daughter "Clementine ", M-22 close ratio, 4:10 12 bolt, CE 302. Hugger orange with white stripes. White standard interior. Restoration complete May 2018
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