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Old 02-18-2012, 09:03 AM   #31
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Quote:
Originally Posted by MTH

Similar logic for the 3.73s we discussed above, but for our 3.8s. Of course 4.10 would be an improvement, but if you're going to go through the expense and so on for a 3.8, you might as well head to 4.56 or even 4.88, especially of you're planning 33s or 35s. So if you told me you could tap my hood with a magic wand for $100 and give me 4.10s I'd of course take it, but not for $1800. Make sense?
Yep.... Saved you $1500 plus.

As JB always stresses "you only want to do gearing ONCE"

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Old 02-18-2012, 09:11 AM   #32
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We'll you can add $325 to my gearing bill, the parts dept forgot that the carrier has to be changed and they did not find out until they got it back together and there was too much play. Parts are ordered and they will be here Monday.

JeepDon and guys, we are west of Grand Forks here, we've rode south of you on the Harley a few times going to Beartooth or looking around Madora.

We might be up to some easy 4 wheeling but we are keeping this rig stock for the most part. This one is our DD and we are both disabled Vets so I can't afford to beat it up.

Hopefully we will have a good report on the 373's in a week are so. Thanks guys.

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Old 02-18-2012, 10:08 AM   #33
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Originally Posted by Thumper2012 View Post
We might be up to some easy 4 wheeling but we are keeping this rig stock for the most part. This one is our DD and we are both disabled Vets so I can't afford to beat it up.

.
My many thanks to you for your service to our country.!
If you ever get your jeep out here to Western ND, PM me in advance.
There are a lot of great back country roads and trails that will not beat up your Jeep. Lots of wildlife to view, Elk, Mule deer, whitetails, Bighorn sheep. And if ya want to shoot some prairie dogs, we can do that, also.

Happy Jeeping
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Old 02-18-2012, 12:44 PM   #34
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I know you're committed at this point and I hate to keep coming back and berating you . . . but I . . . can't . . . help it . . . Please forgive me. This will be it on my contribution to the topic, I promise.

If you "hate" the 3.21s, then I really can't imagine why you'd think the 3.73s are going to be enough of an improvement. Why not 4.10s? That is a stock ratio (it's standard with the 2012 manual trans Rubicons, and an option for the autos).

Like I said, 300 RPMs. That's what you're adding. In that other thread, we established that just downshifting to 5th with the 3.21s gets you about 400 RPMs, and you mentioned that you really weren't happy with the power in 5th, so why would getting a few less RPMs in 6th really be any better?? I suppose you could again downshift to comparably higher RPMs, but if you're still going to have to downshift why bother regearing at all? The 3.6 keeps churning out more horsepower all the way up until around 6k RPMs--neither 3.21s, 3.73s, nor 4.10s really even get close to that at any reasonable speed.

Your TJ was a totally different vehicle. Different engine. Different trans. Diffferent weight. Different tires. Totally different. It is absolutely 100% irrelevant to the analysis here. My wife's Yukon has 3.73s too and it's great . . . of course it also has a 6 liter V8 and is likewise an entirely different vehicle so it doesn't really inform the discussion very much.

Ahh well. In any event, let us know how it goes. For what it's worth, you'll be the only person I can recall on the forum making this slight of a change. So you'll be uniquely situated to opine on the difference in drivability from 3.21 to 3.73.
Pay attantion folks. This is good info.

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