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Saturn overdrive

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General Eisenhower View Drop Down
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    Posted: 13 Aug. 2019 at 9:11pm
I am her out of curiosity as to what I have. The pink camo wreck I have (it runs and drives, fret not) has a Saturn overdrive with it, and I am too ignorant to know anything more. Any info/ tips and advice would be awesome. It seems to be be good to have an overdrive, but again, I don't know. Also anyway to tell age or if it's a factory option? 
Thanks guys 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steelyard Blues Quote  Post ReplyReply Direct Link To This Post Posted: 13 Aug. 2019 at 9:28pm
1947 CJ2A, Body & Frame: 106327, Engine: J109205, Tub and Tailgate: 97077. Originally Luzon Red

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark W. Quote  Post ReplyReply Direct Link To This Post Posted: 13 Aug. 2019 at 9:43pm
Not factory warn introduced the OD in 1962. When they quit making them Advance adapters bought the design and started selling them in 1991.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote damar2yxr Quote  Post ReplyReply Direct Link To This Post Posted: 13 Aug. 2019 at 9:52pm
You’ll like having an overdrive. It doesn’t make you go any faster.....really. It allows you to cruise at higher speeds with less RPMs, the engine noise is less, it cruises more smoothly. I kind of liken it to having an extra 1/2 gear at 1st, 2nd and 3rd....now you have a 1.5, 2.5 and 3.5 as well. They are a very coveted option for us classic Jeep types.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote General Eisenhower Quote  Post ReplyReply Direct Link To This Post Posted: 14 Aug. 2019 at 7:15am
Is the OD usable and useful in all config? Like 4Hi, 2Hi, 4Lo, 2Lo?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote damar2yxr Quote  Post ReplyReply Direct Link To This Post Posted: 14 Aug. 2019 at 7:41am
yup
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smfulle Quote  Post ReplyReply Direct Link To This Post Posted: 14 Aug. 2019 at 10:19am
O
Originally posted by General Eisenhower General Eisenhower wrote:

Is the OD usable and useful in all config? Like 4Hi, 2Hi, 4Lo, 2Lo?

I use mine in low range more than any other time. Especially useful when traveling in a group and trying to match speeds with your trail mates that have different gearing or power set ups than you do.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jeepcj559 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Aug. 2019 at 8:49pm
I looked at a cj3a with a v6 auto and a warn overdrive. How does the overdrive work with an auto?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tufcj2a Quote  Post ReplyReply Direct Link To This Post Posted: 14 Aug. 2019 at 8:53pm
I love the OD in my CJ.  Standard equipment from now on with every project.  Makes up for the standard gearing and gives the engine a little breathing room.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Metcalf Quote  Post ReplyReply Direct Link To This Post Posted: 15 Aug. 2019 at 1:19pm
Oiling is critical to their life span.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote duffer Quote  Post ReplyReply Direct Link To This Post Posted: 15 Aug. 2019 at 8:35pm
Originally posted by jeepcj559 jeepcj559 wrote:

I looked at a cj3a with a v6 auto and a warn overdrive. How does the overdrive work with an auto?

Warn/Saturn OD's replace the mainshaft drive gear in the D18 transfercase.  The only relationship with the transmission is the diameter/spline count on the transmission output shaft which must match the overdrive unit.  As long as the splines match, what type of transmission doesn't matter.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe Friday Quote  Post ReplyReply Direct Link To This Post Posted: 15 Aug. 2019 at 9:06pm
I've never seen a Saturn behind an auto.
Didn't know they made an auto with D18, only D20?
Custom I guess.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote On Jeep About Quote  Post ReplyReply Direct Link To This Post Posted: 01 Sep. 2019 at 8:16pm
I ran an overdrive behind a turbo 350,(the trans had an advanced adopters kit for the t-18)work just the same as behind a t-90, except shifting, I speed shifted mine all the the time, but if you can’t get the hang of that then just shift when stopped.
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