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what year did limited slip come in

Discussion in 'The Garage' started by rerun93, Jan 11, 2005.

  1. rerun93

    rerun93 Registered Member

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    i wanted to do atleast limited slip in the rear but i was wondering what year. and how would i know what it looks like? do i pull the dif to find out? if anyone has pics that would be awesome
     
  2. Emmettology 101

    Emmettology 101 3/4 ton status

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    Limited slips came in just about any year. The best way to tell if the diff is an LSD is to look where the spider gears go. One a 10 & 12 bolt, instead of seeing the spider gears, you will see springs and clutches(and a few other odd looking items)....


    HTH.
     
  3. stizkidz

    stizkidz 1/2 ton status

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    And as I learned the easy way... Look in the glove box for RPO code "G80".
     
  4. sweetk30

    sweetk30 professional hooker Premium Member

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    no g80

    isnt the code g80 for the gov bom and not a posi unit. and if so you dont want a 10 or 12 gov bom thay blow way to easy.
     
  5. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

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    What axle? A gov loc is a posi.
     
  6. beater_k20

    beater_k20 Banned

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    a G80/Gov Bomb is the only factory GM traction device used in trucks off the production lines.
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

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    According to the service and parts manual, you actually could get 3 or 4 different traction aiding diffs in the trucks.

    Can't confirm, only thing I've ever seen is gov-lock or open, but I haven't seen every one out there.

    G80 is a generic "traction aiding" rear differential code, used in cars or trucks, any type of limited slip, to include the gov-lock.
     
  8. atho

    atho 1/2 ton status

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    yeah!

    except for the older clutch style posi, the detroit locker (no-spin), the power-lock (dana axles) and the track lock (dana axles), you are right.
    :rolleyes:

    in 67-72 trucks, G80 denoted a clutch style posi. I dont know when the switch to the gov-bomb was made.
     
  9. WantedaDodge

    WantedaDodge 1/2 ton status

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    when the fender tag says locking diff, does that mean limited slip, or a real locking diff?
     
  10. rerun93

    rerun93 Registered Member

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    so basically there is no stock lim slip i can get at a junkyard? are 14bff open?
     
  11. Emmettology 101

    Emmettology 101 3/4 ton status

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    Some have had bad luck with the Gov-loks. I would say get one and run it. See if you like it. I had one in the rear of my 82 for 4 years. Snapped a rear axle off in the carrier and it never failed me.

    I actually thought about running a gov-lok in the 14ff on my Toyota.
     
  12. rerun93

    rerun93 Registered Member

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    iam still not sure what iam supposeeed to look for to see if it is a limted slip or even a 14bff. not sure what full floater means. if anyone has any pics taht would help alot. i learn by seening better then readin unfortuantly
     
  13. Emmettology 101

    Emmettology 101 3/4 ton status

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    To know if is it a FF or not, look where the wheel bolts on. You will have a set of 8 lugs that hold the wheel on. Then look inside of that at the portion that protrudes through the wheel. It will have bolts on the end of it. Thats a FF axle.

    Do a search in the forum. There was a just a thread or two discussing what a gov-lok will look like in a 14FF with pics. And also explanations of SF vs. FF.
     
  14. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

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    trac locs come in 8.8s too.
     
  15. dyeager535

    dyeager535 1 ton status Premium Member

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    You have to pull the diff cover off.

    Assuming you have a 10 or 12 bolt, if there are clutches and a spring (or springs) in the very center of the carrier (what the ring gear is bolted to) it's a limited slip. Gov-lock has clutches, plus some extra gears and weights that make it more complex.

    You can put a limited slip out of a car into a truck axle (10 or 12 bolt again) but they aren't as effective off-road as a true "locker", as the trucks weigh a BUNCH more, (besides the amount of load placed on one wheel when off-roading) and weight is a disadvantage when dealing with clutch/cone style limited slip.
     

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