Changing gears

[stepbill]

If I want to change my gears from 3.21 to 3.92, does the front end also need to be changed with 4 wheel drive? Would you stick with MOPAR gears since they should still be covered under warranty according to my salesman or go with a different brand?

 

[JoeCo]

If I want to change my gears from 3.21 to 3.92, does the front end also need to be changed with 4 wheel drive? Would you stick with MOPAR gears since they should still be covered under warranty according to my salesman or go with a different brand?

Unfortunately yes they would, and from what I've heard its very costly. I'm sure it's been done and I'm sure someone on here has done it and can give you a ballpark figure.

 

[BEAST19]

Unfortunately yes they would, and from what I've heard its very costly. I'm sure it's been done and I'm sure someone on here has done it and can give you a ballpark figure.

$3k plus I’d stick with mopar gears.


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[stepbill]

$3k plus I’d stick with mopar gears.


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Thanks and I guess that's out of the question. Was hoping that it would be around 1k.

 

[BEAST19]

Thanks and I guess that's out of the question. Was hoping that it would be around 1k.

Lol nope I know from first hand experience. Lol


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[RoadRamblerNJ]

Lol nope I know from first hand experience. Lol


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But is was such a pleasant, enlightening experience, wasn't it? LOL.

 

[JoeCo]

Thanks and I guess that's out of the question. Was hoping that it would be around 1k.

Just a guess but with 2wd if probably would have been (if anyone is looking at this for reference in the future). I believe the front probably costs more than doing the rear, any idea on that @BEAST19 ?

 

[BEAST19]

But is was such a pleasant, enlightening experience, wasn't it? LOL.

Definitely helps it get up and go! And doesn’t downshift nearly as much on highway at every slight hill !


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[BEAST19]

Just a guess but with 2wd if probably would have been (if anyone is looking at this for reference in the future). I believe the front probably costs more than doing the rear, any idea on that @BEAST19 ?

I replaced the whole front diff (which is required in I believe 2014 and up don’t quote me ) that ran almost 1300$ just for the 3.92 front diff.


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[JoeCo]

I replaced the whole front diff (which is required in I believe 2014 and up don’t quote me ) that ran almost 1300$ just for the 3.92 front diff.


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Ah that's right the front diff, I knew swapping the front required something extra. Thanks for the good info.

 

[BEAST19]

Ah that's right the front diff, I knew swapping the front required something extra. Thanks for the good info.

No problem. !


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[RoadRamblerNJ]

I replaced the whole front diff (which is required in I believe 2014 and up don’t quote me ) that ran almost 1300$ just for the 3.92 front diff.


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Yup. 3.92s need the bigger rear in front.

 

[RoadRamblerNJ]

No problem. !


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Beast, what ratio did you decide on? 56s or 88s?

 

[BEAST19]

Beast, what ratio did you decide on? 56s or 88s?

I went 3.92


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[RoadRamblerNJ]

I went 3.92


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Yeah, me dopey.
Can't fit either of those in a 1500.
Mixed you up with a HD thread.
I thought I remembered you having dificulties with the shop that did your gears. Am I nuts?

 

[JoeCo]

Yeah, me dopey.
Can't fit either of those in a 1500.
Mixed you up with a HD thread.
I thought I remembered you having dificulties with the shop that did your gears. Am I nuts?

4.56's or 5.88's in a relatively stock half ton (assuming) would be badass! Man that thing would go like hell, for a little while.

 

[BEAST19]

Yeah, me dopey.
Can't fit either of those in a 1500.
Mixed you up with a HD thread.
I thought I remembered you having dificulties with the shop that did your gears. Am I nuts?

Hahaha no biggie. , but yea u probably talked to me . The Yukon duragrip posi they installed blew up on me within 100miles lol went to mopar lsd. So far so good minus a little noise (very faint “shinging” noise u can only hear at slow speeds. Put it on lift at shop to change the differential cover at the same shop and had him listen to the noise and he hears it , rechecked backlash and specs and can’t attribute it to anything . I called motive gears and they say the 9.25 tear ends get noisy with after market and when u change gears there’s different harmonics that I could be hearing bla bla bla . We’ll see.


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[stepbill]

I have a call into a 4 wheel drive shop that specializes in gear changes. He is working up a price using MOPAR parts and is going to get back to me. He said that it was about a day and a half job.

 

[JoeCo]

I have a call into a 4 wheel drive shop that specializes in gear changes. He is working up a price using MOPAR parts and is going to get back to me. He said that it was about a day and a half job.

Never hurts to know the options, let us know what they come back to you with.

 

[RoadRamblerNJ]

Hahaha no biggie. , but yea u probably talked to me . The Yukon duragrip posi they installed blew up on me within 100miles lol went to mopar lsd. So far so good minus a little noise (very faint “shinging” noise u can only hear at slow speeds. Put it on lift at shop to change the differential cover at the same shop and had him listen to the noise and he hears it , rechecked backlash and specs and can’t attribute it to anything . I called motive gears and they say the 9.25 tear ends get noisy with after market and when u change gears there’s different harmonics that I could be hearing bla bla bla . We’ll see.


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Yup, yup, yup. I Remember that whole thread! You were more calm than half the guys giving you advice (opinion). You were like, "well yeah it's new and now it's ****** so I prolly gotta spend more to fix it". And everybody just went NoNo, yhey gotta own that. Ha! And they did, so, good. Cool got it now.