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4x4 low

Discussion in 'Performance and Tuning' started by Tundra_mike89, Aug 23, 2017.

  1. Aug 23, 2017 at 3:04 AM

    Tundra_mike89 [OP] New Member

    Jul 29, 2017
    First Name:
    South Texas
    2016 TUNDRA CM 4x4
    Toytec boss coilovers Toytec shackles Total chaos uca's Method wheels Nitto ridge grapplers
    whats up everyone,
    Sorry I couldn't find a 4x4 thread to post in so hopefully I'm posting in the right spot. Yesterday I was in some deep sandy loam going uphill to a fishing spot. I switched from 4x4 hi to 4x4 low to crawl through it because I was starting to get stuck. When I made the swap I noticed a humming coming from the front diff. Once I crawled out I stayed in low and the humming stayed the same. Is this normal? Just a light hum that came from the front end and the higher the rpm the higher the humming. I don't know hopefully it's normal ???

    EDIT: the hum only occurs when I'm on the gas. No humming at a standstill
  2. Aug 23, 2017 at 3:59 AM

    Wynnded What MPG...

    Apr 20, 2014
    2011 RCSB S/C'd 5.7L AWD Tundra
    OEM Upgrades: TRD PRO BBS Wheels TRD S/C, Viktor G Tune and +2 psi pulley TRD Front Sway Bar TRD Rear Sway Bar Fox TRD Pro Shocks Limited mirrors (auto darkening/backup camera/power fold/puddle lights) Limited Grill Mod Automatic Climate Controls Mod Automatic Headlamp Mod Sequoia Transfer Case Mod Sequoia Leather Steering Wheel Mod Sequoia Limited Gage Cluster Mod Sequoia LED Headlamp Upgrade Window Tint Fake Manual Transmission Mod 10" BAMufflers Stainless Catback Engine Block Heater Illuminated Ignition Key Ring Mod Deck Rail System w/cleats
    May just be gear reduction noise from the transfer case. Kind of tricky to say what it is without being there to hear it.

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