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BEST gear oil?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by txbartman, Aug 23, 2001.

  1. txbartman

    txbartman 1/2 ton status

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    I have seen lots of posts about this, but nothing direct and to the point. I am doing my R&P swap this weekend and want to make sure I give these guys a good chance to live! [​IMG] So, what do you guys consider the BEST gear lube I should fill'er back up with?

    Brian
    Click to see <a target="_blank" href=http://tx85gmcguy.alloffroad.com> My 85 Jimmy </a>
    Who put a stop payment on my reality check?!?
     
  2. Blazer1970

    Blazer1970 1/2 ton status

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    Mobil 1 synthetic is good stuff. I have seen some references where they claim that the synthetic gear oil is not compatible with silicone sealant, so if you use silicone on the diff cover, you might want to look into that.

    Tim

    70 Blazer CST 4X4 350 SM465 NP205
    87 Burb 4X4 350
    01 GMC 2500HD 4X4 Duramax/Allison
     
  3. txbartman

    txbartman 1/2 ton status

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    Guess that leads to another question. Would you guys use RTV or a paper gasket on the diff cover?

    Brian
    Click to see <a target="_blank" href=http://tx85gmcguy.alloffroad.com> My 85 Jimmy </a>
    Who put a stop payment on my reality check?!?
     
  4. DesertDueler

    DesertDueler 1/2 ton status

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    Just use RTV. Thats what they use from the factory now. If its good enough for the factory, good enough for me.


    86 Jimmy 4"lift 35"MTRs locked front.Other cars 69 Firebird w/525 hp,and 70 GTO <a target="_blank" href=http://link>http://www.geocities.com/modifierperformance</a>
     
  5. Triaged

    Triaged 1/2 ton status

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    I use paper and "Gaskacinch" (the can with the Pin-Up girl on the side) and have never had a leak.

    Use some cheep stuff (not synthetic) for break-in and than use the good stuff.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  6. tlarsw

    tlarsw 1/2 ton status

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    Use the "Right Stuff" RTV. The best on the market. Can torque to spec immediately.

    If you going to be running this vehicle off road, through mud and water, use a standard gear oil and change it frequently.

    No sense in waisting the cash on Mobile 1.

    1986 K10 TPI350/NV4500/Gen2 Doubler/D60(ARB)/14FF(Detroit)/4.56 gears
     
  7. laketex

    laketex 3/4 ton status

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    cheap 90W. change it frequently.

    Sherman, Tx
    <font color=red>Come Awn yall...Let's go to LUCHENBACH, TEXAS!!!
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  8. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Wal-Mart brand and change it once a year.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  9. ftn96

    ftn96 1/2 ton status

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    Use the black RTV and get the regular gear oil from Auto Zone or any other local parts store. And change it about every 10,000 miles or so.
    But you'll have to cahnge it after the 1st 500 miles for the break in period.

    What is and what should never be....
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     

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