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Manual Tranny fluid?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by CaveBlazin, Feb 9, 2003.

  1. CaveBlazin

    CaveBlazin 1/2 ton status Premium Member

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    Looked in the search but could'nt find anything. Whats a good fluid to use in my SM465 and my NP208 any recommendations. Thanks,
    Spence
     
  2. MJF

    MJF 1/2 ton status

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    The 465 uses gear oil & the 208 uses tranny fluid. If you're looking for a good brand, who knows. I figured they're all the same.
     
  3. TX Mudder

    TX Mudder 1/2 ton status

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    Gear oil, 85/140
    I buy Coastal gear oil in a 25 pound bucket - it's the cheapest way. I'm on my second bucket /forums/images/graemlins/smile.gif
    I use it all the time - both axles in my Chevy, the 465, the 205, and the rear axle in my Dodge DD.

    -- Mike
     
  4. Highlander

    Highlander 1/2 ton status

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    Well for a Good Gear oil or Eng. oil for that matter I would say any of Amsoils products would work for you.


    Eric
     
  5. 87sm465np208

    87sm465np208 1/2 ton status

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    85\140 /forums/images/graemlins/blush.gif, in a 465 i run 80\90 in my trucks 465, front 10 bolt and rear 12 bolt, why the heavy lube, does it work that much better?
     
  6. imiceman44

    imiceman44 1 ton status

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    85/140 is thicker, lubes better but has more drag.
    If you want more protection quieter operation and don't mind the 1% loss in fuel economy go with the thicker oil.
    If you are looking for the last HP you can squeeze out of you engine go with the thinner, even 75/90 synthetic.
     
  7. OrangeCrushK10

    OrangeCrushK10 1/2 ton status

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    Nice self-promotion there, Highlander. /forums/images/graemlins/rotfl.gif
     
  8. CaveBlazin

    CaveBlazin 1/2 ton status Premium Member

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    Ok so pretty much all the thicker weight gear oil is good as for the transer case I should use normal dextron III or what.
     
  9. imiceman44

    imiceman44 1 ton status

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    The 241, 208 and the newer 205 (slip yoke) will use Dexron III or any ATF.
     
  10. CaveBlazin

    CaveBlazin 1/2 ton status Premium Member

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    Thanks again yall!!!!
     

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