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4.56 Gear Install Part Numbers Help

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Old Jan 23, 2012 | 08:44 PM
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From: Trenton, MI
Year: 1998
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Default 4.56 Gear Install Part Numbers Help

I recently discovered a friend of mine is a motive gear dealer. I am looking to get everything I need to install 4.56 gears on my XJ. I have a 98 XJ with HP D30 front axle and 8.25 Rear Axle. I am looking for the part numbers I will need for the two axles ring and pinion and master overhaul kits.
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Old Jan 23, 2012 | 08:47 PM
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don't forget a new 3.73 and up carrier for the D30, if you're currently geared 3.55 or lower
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Old Jan 23, 2012 | 08:51 PM
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yes sir that is on my list as well forgot to add that to my post thanks for the heads up.
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Old Jan 23, 2012 | 09:11 PM
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Gears appear to be part #'s:

C8.25-456
D30-456F

Master overhaul kits?:
R8.25RMK?
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Old Jan 23, 2012 | 09:19 PM
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I strongly recommend you look at the Motive Warranty before spending your money.
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Old Jan 23, 2012 | 09:39 PM
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Thanks for the response. I am an avid follower of your posts and respect your opinion and knowledge. I have read the warranty (or lack thereof) after you posted it in a previous post I read somewhere on this site. I will certainly agree that the warranty is terrible. Superior gears are much better and permitting funding I may choose to order them instead. I have had good experiences with Motive gears which I have used on several other vehicles so although their warranty is terrible I feel relatively confident running them on another rig. We shall see. Just trying to get the part numbers for the motive parts so I can see his price. If it is not terribly different I may just order Superiors from you.

Last edited by jsowards; Jan 23, 2012 at 09:41 PM.
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Old Jan 23, 2012 | 09:43 PM
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Thank you.

Have you looked at the Product Catalog at MotiveGear.com?
I think you meant AlloyUSA, I don't sell Yukon.....bad experience with 'em.

AlloyUSA & Precision Gear = 5 year warranty.
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Old Jan 23, 2012 | 09:52 PM
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I realized that after I posted and looked at your website again. I have looked through the catalog and discovered the part numbers needed for the gears but the HP D30 master overhaul kit I am still uncertain about. They list several kits but I do not know which one is the correct one.

http://motivegear.com/pdf/LD_DIFFCAT_011_1.pdf

On page 16
perhaps someone could enlighten me which one is correct.
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Old Jan 24, 2012 | 09:49 PM
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Anybody know the correct part number for the master overhaul kit for the D30?
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Old Jan 25, 2012 | 08:54 PM
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bump
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Old Jan 26, 2012 | 04:09 PM
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Nobody has ordered a gear package from RC?
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