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Thread: Diff Whine

  1. #1
    Senior Member Getting Dirty BonesWK's Avatar
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    Diff Whine

    So my Jeep seems to have a Whine at about 60 mph under load, but also coasting... Im thinking I need to get my Diffs looked at.

    After looking on JF, it looks like I may have a bad Ring and Pinion but I need to take it to someone who knows what the heck is going on... Anybody have experience with a Diff whine?

    This feels expensive...
    Ryan ---- 2006 WK 4.7 QDII <- Click for Garage
    2.25" RR Lift - Front Bilstiens - Rear OMEs - 32" Wildpeaks - Saguaro 4x Shackles - Tail Light Guards - AFE intake - Rola - Exhaust
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    Quote Originally Posted by AJeepZJ View Post
    Can't wait to see that big girl on those fat meats!

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    Senior Member Getting Dirty The_War_Wagon's Avatar
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    Quote Originally Posted by BonesWK View Post
    Anybody have experience with a Diff whine?
    ONLY with a '79 Bronco. Damn thing had just 13 teeth left on a 39 tooth ring gear, but she was still rolling when I drove it into the shop!

    Look on the bright side - if it's going bad, now's the PERFECT time to go to those 5.13's, in anticipation of your 9" lift & 40" M/T's!
    '07 Jeep Commander, Rocky Mountain Edition - 287 V-8 - Superchipped - aFe Stage II R-5A CAI - Flowmaster Super 44 - 2" Daystar lift - Spidertrax spacers - 32x10.5x17 Cooper A/T's - Fastman throttlebody - Skyjacker 8000 shocks

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    Senior Member Getting Dirty BonesWK's Avatar
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    LOL yeah right.. The more I search the more I am thinking Pinion Bearing.

    Guess my tax return wont be going to a superchips after all...
    Ryan ---- 2006 WK 4.7 QDII <- Click for Garage
    2.25" RR Lift - Front Bilstiens - Rear OMEs - 32" Wildpeaks - Saguaro 4x Shackles - Tail Light Guards - AFE intake - Rola - Exhaust
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    Quote Originally Posted by AJeepZJ View Post
    Can't wait to see that big girl on those fat meats!

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    Lifetime Member Getting Dirty 06JeepXKHEMI's Avatar
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    When was it last serviced?? Probably pinion bearing, grab your rear drive shaft and see if you have any play horizontally or vertically
    2K6 Limited Jeep Green Metallic/Saddle Brown Leather XK HEMI QDII Old Man Emu HD Suspension w/ Fox Emulsion 2.0 Rear Shocks 1.5" SpiderTraxx Wheel Spacers 265/70 GoodYear MTRs w/Kevlar True Dual Exhuast w/IMCO 50 K&N 63 CAI Diablo 91/Performance Transmission Tuned SA Belly Skid MOPAR Gas Tank Skid, Transfer Case Skid, Suspension Skid Front Tow Hooks 6k HID Lows/3k Fogs

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    Senior Member Getting Dirty BonesWK's Avatar
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    Quote Originally Posted by 06JeepXKHEMI View Post
    When was it last serviced?? Probably pinion bearing, grab your rear drive shaft and see if you have any play horizontally or vertically
    maybe 20k ago? Its due I know...

    I will check for play today. I have a buddy that is offering to help with the repair so thats good. Where in the world can I buy the Pinion Bearing for a QDII - dealer only?
    Ryan ---- 2006 WK 4.7 QDII <- Click for Garage
    2.25" RR Lift - Front Bilstiens - Rear OMEs - 32" Wildpeaks - Saguaro 4x Shackles - Tail Light Guards - AFE intake - Rola - Exhaust
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    Quote Originally Posted by AJeepZJ View Post
    Can't wait to see that big girl on those fat meats!

  6. #6
    Super Moderator Getting Dirty 07JeepXK's Avatar
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    I'd say it's a bearing, not the actual ring and pinion
    2007 4.7 Liter XK | Front Modified OME HD Lift | Rear 4" Superlift | JBA UCA's | Rusty's Rear Adjustable Track Bar | Rysty’s Adjustable Upper and Lower Rear Control Arms w/Heim Joints | Mickey Thompson Classic III 17x9 Wheels | 315/70R17 Goodyear Duratracs | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front Electronic Locker | Rear Heat/AC Delete

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    Senior Member Getting Dirty BonesWK's Avatar
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    Talked to a friend, he said usually when the bearing goes out, fluid would be leaking... is that always the case? I dont think I have fluid leaking from either front or rear pumpkin
    Ryan ---- 2006 WK 4.7 QDII <- Click for Garage
    2.25" RR Lift - Front Bilstiens - Rear OMEs - 32" Wildpeaks - Saguaro 4x Shackles - Tail Light Guards - AFE intake - Rola - Exhaust
    Twitter Facebook ---- Chive On
    Quote Originally Posted by AJeepZJ View Post
    Can't wait to see that big girl on those fat meats!

  8. #8
    Member Looking for Dirt
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    I recently purchased a junk yard QDII FRONT axle assembly. I purchased an overhaul kit from yukon gear. Everything came out really well. Not sure if you can purchase individual bearings and races from them but it's worth a shot to ask them.
    2006 Jeep Commander Limited, 4.7L, QDII, 4" Superlift Supension Lift, Procomp Xtreme Mud Terrain Tires 285 70R17, Mickey Thompson Classic ii Wheels 17X9, AEM Brute Force CAI, Superchip flashpaque, 4XGuard belly guard, 4XGuard Front Guard, Rear Grab handles and Defender Roof Rack.

  9. #9
    Senior Member Getting Dirty BonesWK's Avatar
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    Quote Originally Posted by Gulf550 View Post
    I recently purchased a junk yard QDII FRONT axle assembly. I purchased an overhaul kit from yukon gear. Everything came out really well. Not sure if you can purchase individual bearings and races from them but it's worth a shot to ask them.
    Thanks dude! I think an overhaul kit is what I need anyways. I will look them up.

    I looked some online but everything I was seeing other places after I put in my vehicle info was showing D44 stuff.

    Edit - I think I found the info I needed

    Chrysler 8.25" '05 & up. This version of the 8.25" uses metric ring gear bolts. The C213R is an open differential. The C213RE has a factory electronic locker.

    http://www.yukongear.com/ProductDeta...x?ProdID=11056
    Last edited by BonesWK; 03-19-2014 at 11:12 AM.
    Ryan ---- 2006 WK 4.7 QDII <- Click for Garage
    2.25" RR Lift - Front Bilstiens - Rear OMEs - 32" Wildpeaks - Saguaro 4x Shackles - Tail Light Guards - AFE intake - Rola - Exhaust
    Twitter Facebook ---- Chive On
    Quote Originally Posted by AJeepZJ View Post
    Can't wait to see that big girl on those fat meats!

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