for those that are running Optima batteries.....
Thread Starter
Joined: Nov 2001
Posts: 816
Likes: 2
From: Lake Delton, WI
for those that are running Optima batteries..... what size are you running? They make both the D75/25 and D34/78 in yellow and red tops. The D75/25 is a bit smaller and will fit with no problems or adaptors from what I have read. The bigger D34/78 is a bit wider and requires a adaptor to correctly mount it to the stock mount.
I just ordered a yellow top D75/35, as I didn't want to take the chance of it not fitting or if it not mounting correctly.
Here's the D75/25 in yellow top:
Here's the D34/78 in yellow top:
I just ordered a yellow top D75/35, as I didn't want to take the chance of it not fitting or if it not mounting correctly.
Here's the D75/25 in yellow top:
Here's the D34/78 in yellow top:
Thread Starter
Joined: Nov 2001
Posts: 816
Likes: 2
From: Lake Delton, WI
Originally Posted by 2001NBMZ28
I just bought a red top 75/35, looks like your first pic - no fitment problems at all.
Red Top 75/25
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
75/35 - Got mine from Sears. Just went to their site and the red top 75/25 pic doesn't have side posts? Maybe the yellow tops are different.
Last edited by 2001NBMZ28; Mar 31, 2006 at 01:29 PM.
Thread Starter
Joined: Nov 2001
Posts: 816
Likes: 2
From: Lake Delton, WI
hmmmm,
Optima's site doesn't even list a 75/35.....might be a typo..
http://www.optimabatteries.com/publi...cal_specs.html
Optima's site doesn't even list a 75/35.....might be a typo..
http://www.optimabatteries.com/publi...cal_specs.html
Trending Topics
I got a 75/35 for my firebird about a month ago...now just got a LS1 and got a new red top...went to sears becuase they gave me a 78 ..wrong one..anway we finally after about 30 min figured out that optima changed it. the 75/35 and the 75/25 same thing same ratings..same part # side and top posts..anway its looks like the 75/25 is the newer one mine was made this month....so its brand spanking new....
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Launching!
Joined: Jan 2003
Posts: 218
Likes: 0
From: NV
Originally Posted by 10.9@1/4
dont mean to hijack but whats so much better about an optima?
You can roll over a Jeep and the Optima will still work perfectly while upside down! Not enough? Try leaving a regular Die Hard or whatever sitting for a few months then go try to start your car. DEAD of course. The Optima is famous for being able to start a vehcle that has been sitting around for up to a year and will still turn over the engine.
Unless people are cheap asses, (many are) and won't pay the extra money for a battery you can trust, there is no reason not to buy Optima IMHO. 
Last edited by ChevyGoldfinger; Jun 5, 2006 at 05:13 AM.
Originally Posted by ChevyGoldfinger
Well, for openers the Optima is a true The Optima has a special design with sprial cells that not only last longer than other lead acid batts. but cannot leak acid and still work even if you shoot them with a gun!!
Originally Posted by billyb
guys did you know that optima make a cover for their batt, snaps in on top, really looks good !!!
Launching!
Joined: Jan 2003
Posts: 218
Likes: 0
From: NV
Originally Posted by kapedogg
what's the difference between the yellow and the red top optima?
The red top is for normal use in cars that just need short cycles of high amperage to start, and rarely if ever get drained completely dead or even close to it. That type of deep cycle will shorten the life of a red top Optima.
Thanks man, I appreciate it. I think my duralast is on its last leg, and optima is the way to go. I don't usually draw too much extra current while its off for extended time periods, so red top here I come.
