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Old 04-19-2013, 10:31 PM   #1
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4.56 ratio install question

do i need to get anything other than the ring and pinion kit with install/overhaul kit?
its goin on a 2004 tj x

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Old 04-19-2013, 11:37 PM   #2
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Did your kit come with a new carrier? When I do mine I'm changing all the bearings and doing a brake job since it'll all be apart.

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Old 04-19-2013, 11:43 PM   #3
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im not really sure ill have to check. is there any need to change out spider gears or side diff gears?
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Old 04-19-2013, 11:45 PM   #4
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this is what came in my package i just ordered today
Package Includes
1- Dana 35 4.56 ring and pinion set
1- Dana 35 master install kit (pinion bearings, carrier bearings, pinion nut, crush collar, pinion seal, shims, ring gear bolts, gasket, loctite, marking compound, brush)
1- Dana 30 4.56 ring and pinion set (short)
1- Dana 30 master install kit (pinion bearings, carrier bearings, pinion seal, pinion nut, crush collar, shims, ring gear bolts, gasket, loctite, marking compound, brush)
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Old 04-19-2013, 11:46 PM   #5
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it says the 4.56 is compatible with my housing i already have
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Old 04-19-2013, 11:47 PM   #6
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My kit came with a new carrier, what gear ratio do you have now?
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Old 04-20-2013, 12:07 AM   #7
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3.76
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Old 04-20-2013, 12:10 AM   #8
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and for the speedo gear whats the difference between the long and short how do i find out what one will fit?
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Old 04-20-2013, 12:19 AM   #9
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Mine had 3.07's so I was told I would have to change the carrier you can ask the others on here that's way smarter than me on this subject. As far as the speedo gear I have an 03 and it didn't list a long or short version when I ordered a new one.
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Old 04-20-2013, 12:27 AM   #10
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ok thanks ill keep researching
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Old 04-20-2013, 08:08 AM   #11
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I believe that 3.73 is the change in diff carrier for large ratios. You should be all set. What tire size do you have?
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Old 04-20-2013, 08:20 AM   #12
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Yes, you need a 3.73 carrier for any ratio numerically higher than 3.73. You can not use a 3.07 carrier for 4.56s.
I had to buy a 3.73 carrier for when I put 4.56s in my jeep since I have 3.07s now.
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Old 04-20-2013, 08:30 AM   #13
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Quote:
Originally Posted by allstar10 View Post
do i need to get anything other than the ring and pinion kit with install/overhaul kit?
its goin on a 2004 tj x
Have you ever done a differential overhaul?
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Old 04-20-2013, 10:43 AM   #14
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Quote:
Originally Posted by allstar10 View Post
and for the speedo gear whats the difference between the long and short how do i find out what one will fit?
You want short. Those are the only ones that fit. And you don't need a new carrier if you get "thick" gears that are wider than normal 4.56 gears. You can't really go this route now because you already have the gears, but just a future option.

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