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Questions about frames 73-75

Discussion in 'The Garage' started by hi pinion, Feb 27, 2006.

  1. hi pinion

    hi pinion 3/4 ton status

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    Are theere any difference in between the frames on a blazer from 73-75,,comapared to the frames in the 76-91? Or is it all the same ?

    Jake
     
  2. Blazer1970

    Blazer1970 1/2 ton status

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    The body mounts in the rear seat footwell area are inside the frame on '73 - '75 and outside on '76 and up.
     
  3. hi pinion

    hi pinion 3/4 ton status

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    So that the only difference? Body mounts?
     
  4. JDNobodi

    JDNobodi 1/2 ton status Premium Member

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    The earlier frames are straighter between the front and rear axle humps, and the frame rails run parallel. The later frames have a dip to clear the rear seat footwell, and spread out in the middle.
     
  5. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    I stuck a older tub on a newer frame . Front and rear monts line up . Middle are not the same . The sliders will tie in there in my case and hold the body on better :thumb:
     
  6. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    The changeover year is actually '78 not '76. 73-77 are the same and '78 up are the same. I have an early tub on a late frame and it was no fun having to fab up that center body mount...plus i have a weird gap where the footwell used to be.

    Rene
     
  7. Blazer1970

    Blazer1970 1/2 ton status

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    Yup, my mistake on the year.
     

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