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12 bolt strength?

Discussion in 'The Garage' started by muddawg, Jun 19, 2005.

  1. muddawg

    muddawg Registered Member

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    Location:
    Susanville, CA.
    I have a 75 blazer with a healthy 454,700r4,205,44 front and a 12bolt posi rear with 4.88 richmond gears. My question is, will my rear 12 bolt hold up to the power of the big block? I have a 14bff but dont have the $$ for the gears and new 8 lug wheels. I dont do much hard wheeling but i am hard on it on the streets. If i can get away with the 12bolt i'll leave it on. What about a 14bsf? Are those any good? I'm running 37x14.5 toyos.
     
  2. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    12 bolt ain't going to cut it, some will tell you that a 14sf isn't worth the time but if you can pick one up cheap they are vastly stronger than a 12 bolt and I would say go for it. I have no idea how much it would cost or if 4.88 gears are offered for it though.
     
  3. Grieby54

    Grieby54 1/2 ton status

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    My personal opinion is ride around with the 12 bolt for now, because it'll do, but once you get the money, definately upgrade to the 14 bolt or a dana 60
     

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