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Rear Seat Belt Bolts

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by mechted, Feb 21, 2005.

  1. mechted

    mechted 1 ton status Premium Member

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    Anyone know the bolt size and pitch that holds down the seat belts on the rear of a 73 Blazer? (the middle 2 bolts)

    one of the POs sealed the hole with silicone, so i need to buy a tap and new bolts for the middle positions
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Those are 1/2 x 13 tpi

    Watch the bolt length you choose, there are tin caps on the underside you can push through if you use too long a bolt. Also best to buy a bottoming tap for that, just in case you weren't aware there are different types.

    Rene
     
  3. mechted

    mechted 1 ton status Premium Member

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    actually, i dont think they're 1/2 - 13 (have the tap, tried it, no go), the 2 that only hold down seatbelts seem to be smaller... like maybe 7/16?

    ... maybe this is another "73 only" thing?
     
  4. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    The floor and rear half of my Jimmy is a '73...

    I just went and checked and all 10 holes back there are 1/2" x 13 tpi. 6 are for the seat (2 up front, 4 for the back of the seat) the reamost 4 I have no idea what they were for but they are in a square pattern. drivers side and behind the back seat.

    Rene
     
  5. spearchucker

    spearchucker 1/2 ton status

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    Maybe for the spare tire mount :confused:

    Anyway, if you just have silicone in the holes I would try just running a bolt through it. It's not going to mess up the threads and it might even make it help hold the bolt in place, sort of like a thread locker. Most of the silicone may just come out all together.
     
  6. mechted

    mechted 1 ton status Premium Member

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    well, i checked it out today, and they ended up being 7/16 -14. Bolts fit perfectly once i ran a tap through... so maybe my truck is weird or something...:confused:
     

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