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Gears in Dana 44

Discussion in 'Performance & Tuning' started by BNAUGHTY11, Jun 18, 2018.

  1. Jun 18, 2018 at 4:26 AM
    #1
    BNAUGHTY11

    #1
    BNAUGHTY11 [OP] New Member

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    4.5 inch AEV lift DV8 LSF Front Bumper Havoc Offroad Rear Bumper Rough Country Nerf Bars Teraflex HD Tire Carrier Poison Spyder Rear Diff Cover Poison Spyder Hood Louver K&N Cold Air Intake Gibson Exhaust
    New to the forum but I just removed my rear diff cover to find my gears torn up. I am making the 1500 miles trip down to Miami from NJ (3000 round trip) and I was wondering if the jeep would be reliable enough to drive that far. I had intentions of offroading on the way down but those intentions went out the window after seeing this. Should I regear before heading down or should I be fine until I get back home. Build Sheet says I have 3.73s.... but I don’t see why 3.73s would get torn up running only 33s on a 4.5 inch lift. Maybe the build sheet was wrong and I have 3.21s. Thanks for any help you fellow jeepers can provide.

    E788854A-13B5-4DFE-B72D-E975E3F6A4DC.jpg
    82659EDD-C551-4660-B755-18C223ACCBA2.jpg
    6A650508-1B78-4621-900C-AFF4AFE8C5F4.jpg
     
    BNAUGHTY11, Jun 18, 2018
    #1
  2. Jun 18, 2018 at 5:46 AM
    #2
    aggrex

    #2
    aggrex Well-Known Member

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    Welcome! Take your JKU to a shop for an evaluation as worn gears would not end well for any trip. Axle maintenance or how the jeep was driven are more likely causes for worn axle gears rather than the 33s. Fyi: there is a break-in period for new gears.
     
    aggrex, Jun 18, 2018
    #2
    JKBob 25 likes this.
  3. Jun 18, 2018 at 6:53 AM
    #3
    OFFGRID

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    OFFGRID Well-Known Member

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    Houston
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    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    What do the numbers say on your ring gear. Take a pic and post it. Usually there is a 41 and 11 stamped on it side by side for 3.73 gears. This means 41 teeth on the ring gear, and 11 teeth on the pinion. This gives a ratio rounded up to 3.73. Your ring gear looks fine it is your spider gears that are chewed up. Much easier to replace spyder gears than to regear. In a pinch you can weld those spider gears together to prevent them from moving. This is the cheap way of spooling your rearend, and many hardcore wheelers will opt for this when on a budget. It will lock both your tires together making them act like a locker that is always engaged. great for wheeling but it will make cornering on the street more difficult.
     
    OFFGRID, Jun 18, 2018
    #3
  4. Jun 18, 2018 at 7:13 AM
    #4
    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Wow! Welcome aboard!
     
    chris4x4, Jun 18, 2018
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  5. Jun 19, 2018 at 10:53 AM
    #5
    Southeast Overland

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    Southeast Overland Well-Known Member

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    The only damage I can see in the pics are the spider gears and the side gears which are pretty cheaply fixed and should be the OEM units. I am seeing them listed in our parts list here for less than $200. I would have the shop run a pattern on the ring gear and if it is good then replace the spider gears and roll out.


    ~Jeff
     
    Southeast Overland, Jun 19, 2018
    #5
    JKBob 25 and chris4x4 like this.
  6. Jun 23, 2018 at 8:08 PM
    #6
    JKBob 25

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    JKBob 25 Well-Known Member

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    This is a learnin thread for me. I recently upgraded my diff covers. But i did research what spiders and gears should look like if their healthy. And I agree with aggrex. It's not the tire size that matters. It's how much the Jeep was beat on.
    I'm subbed. Post up your fixes and what not.
     
    JKBob 25, Jun 23, 2018
    #6
    OFFGRID likes this.
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