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Difference between 14 ff open and govlock

Discussion in 'The Garage' started by la_blazer82, Aug 6, 2004.

  1. la_blazer82

    la_blazer82 1/2 ton status

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    Sorry for the ignorance, new to straight axles. Am thinking of changing out the rear 10 bolt for a 3/4 ton 14 bolt. What's the difference between a opened and a govlocked axle?
     
  2. 84gmcjimmy

    84gmcjimmy 1 ton status

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    govlocks are factory installed lockers...notorious for blowing up in 10bolts... stronger in 14 bolts.
     
  3. la_blazer82

    la_blazer82 1/2 ton status

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    Just asking -- 14 bolt govlocked axle is available and wondering whether it's easy to change out gearing and add a locker (i.e. Detroit). Or whether it costs more than an open 14 bolt
     
  4. 84gmcjimmy

    84gmcjimmy 1 ton status

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    I'd look for an open one, it will be easier to swap gears and put a detroit (or whatever locker) in it.
     
  5. stallion85

    stallion85 1/2 ton status

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    I recommend you get one with an open carrier and install a detroit. The Gov lock is ok, but it recquires a lot more wheel spin to activate (approx. 100 rpm). The detroit will lock as soon as one tire slips.
     
  6. 4xcrazy

    4xcrazy 3/4 ton status

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    I have the 14bff with the factory Gov-Loc, and i wish i had an open carrier to install the Detroit, the Gov-Loc to me doesn't seem to really do much, maybe helps alittle, but not real noticable, it could also need rebuilt too though, but either way, wished i had a little different setup...Get the one with the open carrier. /forums/images/graemlins/waytogo.gif

    OH and the other thing is you can't install a Detroit into a Gov-Loc carrier.
     
  7. jjlaughner

    jjlaughner 3/4 ton status

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    To break it down a little more, govlocs have 3 side gears and have a clutch pack. The open 14bolt diffs have 4 side gears. The detroit requires the 4 side gear case to be installed.

    Here's a gov lock diff
    [​IMG]

    I welded mine solid
    [​IMG]
     

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