66 Corvette front bumper bolt sizes - NCRS Discussion Boards

66 Corvette front bumper bolt sizes

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  • Ken Harants

    66 Corvette front bumper bolt sizes

    Is there a publication that list the bolt sizes used for the front bumpers and braces on my 66 Corvette? If not, does anyone know the sizes?
  • Kent K.
    Extremely Frequent Poster
    • December 1, 1982
    • 1139

    #2
    Re: 66 Corvette front bumper bolt sizes

    Ken ---- If they are the same as '67, my records are as follows:

    Rear Bumpers - outer & inner brackets
    7/16" - 14 x 1 3/4" w/ plain washer & 7/16" - 14 nut (RSC or RBW)

    Rear Bumpers to brackets thru body
    7/16" - 14 x 1 1/4" w/ flat & lock washers (RSC, UR & C)

    Rear Bumper to Brace
    7/16" - 14 x 1 1/4" w/ plain washer & nut

    Front Bumper Inner Brackets to X-member
    7/16" - 14 x 1" (TR)

    Front Bumper Outer brackets to frame
    7/16" - 14 x 1 3/4" w/ plain washer

    Front Bumper to brackets thru body
    7/16" - 14 x 1 1/4" w/ flat & lock washer (M)

    All were cad plated. Some shims were used for adjustments. Bolt manufacturer's logos found on my '67 are in parentheses.

    Hope this helps,
    Kent #6201
    Kent
    1967 327/300 Convert. w/ Air - Duntoved in 1994
    1969 427/435 Coupe - 1 previous owner
    2006 Coupe - Driver & Fun Car !!!
    NCM Founder - Member #718

    Comment

    • Kurt B.
      Very Frequent User
      • July 31, 1996
      • 971

      #3
      Re: 66 Corvette front bumper bolt sizes

      The GM Chevrolet parts book lists the sizes, part numbers, and has illustrations.
      Kurt

      Comment

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