1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Conflicting info on rear diff oil weight

Discussion in '1st Gen Tundras (2000-2006)' started by dwarmbrodt, Jan 12, 2017.

  1. Jan 12, 2017 at 4:27 PM
    #1
    dwarmbrodt

    dwarmbrodt [OP] New Member

    Joined:
    Dec 7, 2016
    Member:
    #5483
    Messages:
    17
    Gender:
    Male
    Vehicle:
    03 Tundra SR5
    Hello all,
    I am doing the rear diff cover upgrade and when attempting to purchase new oil I had every parts shop counter guy say I need syn 75-90 weight but I found the owners manual and it says syn 75-140 weight for standard differential. My instinct is to follow the manual, but why the difference of opinion? Did something happen since 2003 to make 75-90 a better choice?
    Thanks in advance!
     
  2. Jan 12, 2017 at 6:08 PM
    #2
    mverkaik

    mverkaik New Member

    Joined:
    Aug 29, 2016
    Member:
    #4368
    Messages:
    119
    Gender:
    Male
    First Name:
    Mike
    Hamilton, MI
    Vehicle:
    2021 TRD PRO CrewMax
    WeatherTech Floorliners Toyota Running Boards Reflex Liner Truxedo X15 Pro cover.
    My manual says 75W85.
     
  3. Jan 13, 2017 at 9:36 AM
    #3
    chunk

    chunk New Member

    Joined:
    Oct 2, 2015
    Member:
    #1897
    Messages:
    217
    Gender:
    Male
    110 miles north of Los Angeles, Ca.
    Vehicle:
    2001 tundra, original owner
    Bone stock
    My 2wd 2001, both the owners and Clymer repair manual agree, gl-5 90w for 0 degrees F and above, 80-90w gl-5 for temps under 0 degrees F. Be sure you are looking at the correct specs in the manual. If you are I would run it by a toyota service guy. I always follow the manual, but would want to see why the discrepancy. My info is for non limited slip diff. Good luck.
     

Products Discussed in

To Top