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rear-end whining

Discussion in 'Ram Trucks' started by rcederholm, Feb 4, 2003.

  1. rcederholm

    rcederholm Junior Member
    Messages: 2

    This isn't a joke. I just joined this group based on the candid and straight-forward responses from prior questions.

    The rear-end on my '97 RAM 1500 4X4 is starting to whine. 93K on this truck and it's been a good one. Any suggestions or guidance on potential problems would be much appreciated. I've treated the tranny every 30K but never touched the rear-end.
    :confused:
     
  2. CARDOCTOR

    CARDOCTOR PlowSite.com Addict
    Messages: 1,310

    chrysler has rear problems with all their rwd products
    my father in law s jeep had both rears rebuilt at 25000

    i have a 98 ram 2500 rear rebuilt at 29000

    its already making noise again and i will be visiting my dealer next week





    cardoctor
     
  3. wyldman

    wyldman Member
    Messages: 3,265

    You might just want to check your pinion bearings,and the nut,to see if they are tight.

    We have had quite a few in the shop,where the pinion nut backs off,and you get a gear whine due to the pinion being out of line with the ring gear.

    Just crawl under the truck and try to move the pinion yoke up and down,if there is any movement,it's loose.

    Sometimes you can get away with just a new nut,and collapsable spacer and torquing it to specs.You don't have to open up the diff to do it.210 ft/lbs min,I usually go 250 ft/lbs for the nut.You should have about 20 in/lbs pinion bearing preload as well.
     
  4. Nozzleman

    Nozzleman Senior Member
    Messages: 267

    As Wyldman said it sounds like a pinion bearing. With that mileage it could just be worn out. Get it fixed now before it becomes a more costly repair.
     
  5. DIESELRAM30

    DIESELRAM30 Member
    Messages: 53

    SINCE YOU SAID YOU NEVER SERVICED THE REAR END I WOULD START THERE DRAIN THE DIFF FLUID CLEAN ALL THE GEARS LOOK FOR WEAR SUCH AS WORN OR BROKEN TEETH , ALSO MAKE SURE YOU ADD LIMITED SLIP ADDITIVE TO YOUR REAR BECAUSE DODGE REQUIRES IT, THE REASON I SAY TO DO THIS IS THE FLUID PROBABLY LOST IT'S VISCOSITY SINCE DODGE RECOMMENDS CHANGING THE FLUID EVERY 15000 MILES. THIS IS WHERE I WOULD START AND EVEN IF THE NOISE IS STILL THERE YOU ELIMINATED THE CHEAPER ALTERNATIVE AND IT MIGHT ACTUALLY FIX IT
     
  6. Barkleymut

    Barkleymut PlowSite Veteran
    Messages: 29

    The pinion gear in my 98 1500 2WD went out around 50K. Cost me about $900. :(

    I traded in the truck with 79K and had no problems out of the fixed one. I would get it looked at by a trans. specialist immediately.