Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

14 BFF???

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by trikstark5, Sep 5, 2004.

  1. trikstark5

    trikstark5 1/2 ton status

    Joined:
    Feb 17, 2004
    Posts:
    169
    Likes Received:
    0
    Location:
    usa
    How many quarts of gear oil goes in a 14 bolt? Is there a specific company's gear oil that is better than someone else's?
     
  2. ugly_blazer

    ugly_blazer 1/2 ton status

    Joined:
    Apr 12, 2004
    Posts:
    1,214
    Likes Received:
    0
    About 1 gallon
     
  3. 79Stomper

    79Stomper 1/2 ton status Premium Member GMOTM Winner

    Joined:
    Mar 4, 2004
    Posts:
    4,225
    Likes Received:
    19
    Location:
    Forest, VA
    I was told just under a gallon with an aftermarket diff cover. Remember it fills the axletubes too to lubricate the shaft. I plan on using just standard 90 weight. I think that is what I have a few gallons of.
     
  4. smprider112

    smprider112 1/2 ton status

    Joined:
    May 1, 2004
    Posts:
    624
    Likes Received:
    0
    Location:
    Beaverton,Oregon
    and if its Gov-loc...u should run some kind of limited slip additive ( I believe /forums/images/graemlins/thinking.gif)
     
  5. stallion85

    stallion85 1/2 ton status

    Joined:
    Jul 11, 2003
    Posts:
    3,659
    Likes Received:
    0
    Location:
    Cedar City, UT
    According to Eatons web site the Gov loc does not need an additive. The gear oil I buy is usually limited slip posi friendly though.....can't hurt. Oh yea the 14ff takes an A$$ load of gear oil. I actually put just over a gallon in mine /forums/images/graemlins/yikes.gif
     
  6. trikstark5

    trikstark5 1/2 ton status

    Joined:
    Feb 17, 2004
    Posts:
    169
    Likes Received:
    0
    Location:
    usa
    [ QUOTE ]
    and if its Gov-loc...u should run some kind of limited slip additive ( I believe /forums/images/graemlins/thinking.gif)

    [/ QUOTE ]

    What about a Detroit locker?
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    [ QUOTE ]
    What about a Detroit locker?

    [/ QUOTE ]

    Nothing but gear oil required. /forums/images/graemlins/thumb.gif
     
  8. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,063
    Likes Received:
    70
    Location:
    Pleasanton, CA.
    The only time an additive is required is if there are clutches involved.
     
  9. smprider112

    smprider112 1/2 ton status

    Joined:
    May 1, 2004
    Posts:
    624
    Likes Received:
    0
    Location:
    Beaverton,Oregon
    Gov-locs dont have clutches??
     
  10. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,063
    Likes Received:
    70
    Location:
    Pleasanton, CA.
    [ QUOTE ]
    Gov-locs dont have clutches??

    [/ QUOTE ]

    I was just making a remark as to when an additive or special gear oil is needed.
     
  11. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Gov locs do have clutches, and whether or not they require additive is a matter of debate. I personally don't put anything in them and I've never noticed any chatter.
     
  12. smprider112

    smprider112 1/2 ton status

    Joined:
    May 1, 2004
    Posts:
    624
    Likes Received:
    0
    Location:
    Beaverton,Oregon
    im just making sure that not running special additive's in my gov-loc wont hurt it /forums/images/graemlins/thumb.gif
     
  13. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

    Joined:
    Jan 27, 2003
    Posts:
    3,254
    Likes Received:
    0
    Location:
    Castro Valley, CA
    [ QUOTE ]
    im just making sure that not running special additive's in my gov-loc wont hurt it /forums/images/graemlins/thumb.gif

    [/ QUOTE ]

    It will, unless the worn out. As stated before if it has clutches, it needs posi additive.
     
  14. Blue85

    Blue85 Troll Premium Member

    Joined:
    Jul 26, 2000
    Posts:
    9,086
    Likes Received:
    487
    Location:
    Grand Rapids area
    The Gov-lock clutches aren't used like regular limited slip clutches. Remember, the Gov-lock is a locker. It is supposed to be full open or full locked. The clutches only see slip in the instant the thing is locking or unlocking.
     
  15. 79Beast

    79Beast 1/2 ton status

    Joined:
    Dec 9, 2001
    Posts:
    1,155
    Likes Received:
    0
    Location:
    Georgia
    In a POS (gov loc) differential... It operates as follows:
    clutch packs are engaged all the time just like a limited slip, except weaked than most other limited slips. When the speed of one wheel exceeds the speed of the other by a set (way too many) number of RPMs, the stupid little weights and widgits and such cause it to lock up solid...like a spool. When the load comes off it, it goes back to limited slip operation. It should have additive in it....well actually, if you take my not so humble opinion, it should have a detroit in it.
     
  16. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    It also stops functioning at 20 mph.
     
  17. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

    Joined:
    Jan 27, 2003
    Posts:
    3,254
    Likes Received:
    0
    Location:
    Castro Valley, CA
    or so they say.
     

Share This Page