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omniphil
 Post subject: Need a new ring and pinion for rear. Where should I get em?
PostPosted: Fri May 06, 2016 9:44 am 
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I have a 2006 Sport 4x4 3.7 So it should be a Chrysler 8.25 rear end with a 3.73 ratio I am assuming?

Beside the crazy dealer prices where should I pick one of these up?

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WWDiesel
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 10:48 am 
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A few good locations:
Jeepinbyal
http://jeepinbyal.com/liberty-2002-2007-kj/rear-drive-axle-components/chrysler-8-25in-4-56-ring-and-pinion-set.html
Randys Ring & Pinion
https://www.ringpinion.com/b2c/ProductDetails.aspx?ProdID=12086
Jegs and Summit Racing also sell ring & pinion gears at reasonable prices.... :wink:

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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 11:53 am 
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WWDiesel wrote:
A few good locations:
Jeepinbyal
http://jeepinbyal.com/liberty-2002-2007-kj/rear-drive-axle-components/chrysler-8-25in-4-56-ring-and-pinion-set.html
Randys Ring & Pinion
https://www.ringpinion.com/b2c/ProductDetails.aspx?ProdID=12086
Jegs and Summit Racing also sell ring & pinion gears at reasonable prices.... :wink:


Awesome... Thank you! Seems like alot of those places have 3.55 and 4.10, am I correct that pretty much all the 4x4 3.7's are 3.73 ratio?

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WWDiesel
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 12:04 pm 
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OEM Jeep CRD came with the 3.73 ratio according to what I have read... :|

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Yeti StgIV Hot Tune
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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 1:01 pm 
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WWDiesel wrote:
OEM Jeep CRD came with the 3.73 ratio according to what I have read... :|



Yeah, from what I can tell all auto matic 4x4's were 3.73


Is a Dana 30 the same as the Chrysler 8.25?

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G.O.A.T.
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 2:50 pm 
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omniphil wrote:
WWDiesel wrote:
OEM Jeep CRD came with the 3.73 ratio according to what I have read... :|





Is a Dana 30 the same as the Chrysler 8.25?


No



Sent from my SM-N900P using Tapatalk

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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 4:06 pm 
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3.73 is pretty hard to find for some reason, I'm guessing because most people buying these are upgrading...
However just to add some info to this thread, here's what I found. Seems pretty heavy duty and fairly inexpensive.

http://eastcoastgearsupply.com/i-117858 ... -3-73.html

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G.O.A.T.
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 7:00 pm 
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omniphil wrote:
3.73 is pretty hard to find for some reason, I'm guessing because most people buying these are upgrading...
However just to add some info to this thread, here's what I found. Seems pretty heavy duty and fairly inexpensive.

http://eastcoastgearsupply.com/i-117858 ... -3-73.html

Spend the extra on yukons.

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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri May 06, 2016 7:42 pm 
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G.O.A.T. wrote:
omniphil wrote:
3.73 is pretty hard to find for some reason, I'm guessing because most people buying these are upgrading...
However just to add some info to this thread, here's what I found. Seems pretty heavy duty and fairly inexpensive.

http://eastcoastgearsupply.com/i-117858 ... -3-73.html

Spend the extra on yukons.

Sent from my SM-N900P using Tapatalk


Couldn't find 3.73 in Yukon....

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G.O.A.T.
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Sat May 07, 2016 2:58 am 
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Why stay with 3.73

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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Sat May 07, 2016 6:11 am 
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G.O.A.T. wrote:
Why stay with 3.73

Sent from my SM-N900P using Tapatalk


Don't want to change both ;)

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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Wed May 11, 2016 1:40 pm 
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Ring and Pinion went in today (And also has all new seal, races, bearings)

I'm happy to report that 95% of the whine is gone, there is just a very faint whine around 70 now, that's probably somewhat normal.

It wasn't cheap, but its all good to go now. yay! Here's to another 100,000 miles :)

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WWDiesel
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Wed May 11, 2016 10:07 pm 
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Great! Where did you wind up sourcing the gears from????

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omniphil
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Thu May 12, 2016 4:47 am 
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WWDiesel wrote:
Great! Where did you wind up sourcing the gears from????



http://eastcoastgearsupply.com/i-117858 ... -3-73.html

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u2slow
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Thu May 19, 2016 4:35 pm 
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FYI, 2005+ uses 10mm bolt holes. They're a smidgen bigger than 3/8". Its not the best idea to use 3/8" bolts in a differential case/carrier that has holes for 10mm.

http://www.nitro-gear.com/category-s/542.htm
http://www.rocky-road.com/chrysler-825-gears.html

I got my set of used 3.73's in another forum's classified section. Many guys re-gear to 4.10 and have them left over.

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wheeee32
 Post subject: Re: Need a new ring and pinion for rear. Where should I get
PostPosted: Fri Jun 17, 2016 7:00 am 
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I went with Nitro for the rear. The front is Yukon.

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