4.10 gears

  1. ArDavid318

    Rear diff at 200 degrees

    Hey guys I recently rebuilt my front and rear diff. I started hearing some gear hum during my high speed break in runs (around 65 it starts to humm). I installed 4.10 gears and heard that a little noise is OK… not sure if that’s true or not. With that I am past the short runs and are onto the...
  2. ArDavid318

    Gears are humming

    Hey guys I just finished installing a new gears in my diff and im currently in the break in process. When doing my 20 minute highway runs I noticed it starts humming when I get into the 70mph range. I rebuilt my driveshaft as well with a new slip yoke but only took care of some vibration was...
  3. Pktatum95

    Maximizing mpg 6.4 hemi

    Hey there. Have a question guys. Wanting some of yalls opinions. I have a 2017 RAM 3500 6.4 hemi DRW Reg cab with 4.10 and 66rfe. 209k on the clock. Bought it brand new with 8 miles on it (I put 6 of those test driving it) Lifter failure at 93k. New long block courtesy of FCA. No issues...
    • Pktatum95
    • Thread
    • 4.10 gears 4.56 6.4 hemi 66rfe heavy duty mpg towing
    • Replies: 44
    • Forum: Heavy Duty
  4. Newramguy260

    Tranny temp reading -13*F this morning!

    So, I went out to start my '18 2500 Tradesman this morning. While letting it warm up a bit, ( there was a tinge of wet frost on the windshield, and 37* outside temp! Winter is coming! ) I noticed the Tranny temp was -13 F . After letting it run for 10 minutes, it still only read 5*. There...

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